diff --git a/base/deprecated.jl b/base/deprecated.jl
index cedc68e0e2a92f..fee8cb50b66708 100644
--- a/base/deprecated.jl
+++ b/base/deprecated.jl
@@ -1342,6 +1342,22 @@ end
 @deprecate srand(filename::AbstractString, n::Integer=4) srand(read!(filename, Array{UInt32}(Int(n))))
 @deprecate MersenneTwister(filename::AbstractString)  srand(MersenneTwister(0), read!(filename, Array{UInt32}(Int(4))))
 
+# 22031
+function hex2num(s::AbstractString)
+    depwarn("hex2num(s) is deprecated. Use reinterpret(Float64, parse(UInt64, s, 16)) instead.", :hex2num)
+    if length(s) <= 4
+        return reinterpret(Float16, parse(UInt16, s, 16))
+    end
+    if length(s) <= 8
+        return reinterpret(Float32, parse(UInt32, s, 16))
+    end
+    return reinterpret(Float64, parse(UInt64, s, 16))
+end
+
+@deprecate num2hex(x::Union{Float16,Float32,Float64}) =
+    hex(reintepret(Unsigned, x), sizeof(x)*2)
+@deprecate num2hex(n::Integer) = hex(n, sizeof(n)*2)
+
 # END 0.7 deprecations
 
 # BEGIN 1.0 deprecations
diff --git a/base/docs/helpdb/Base.jl b/base/docs/helpdb/Base.jl
index 622a02c1e3152a..3a4b8cca84f680 100644
--- a/base/docs/helpdb/Base.jl
+++ b/base/docs/helpdb/Base.jl
@@ -565,18 +565,6 @@ original string, otherwise they must be from distinct character ranges.
 """
 eachmatch
 
-"""
-    num2hex(f)
-
-Get a hexadecimal string of the binary representation of a floating point number.
-
-```jldoctest
-julia> num2hex(2.2)
-"400199999999999a"
-```
-"""
-num2hex
-
 """
     truncate(file,n)
 
@@ -1360,13 +1348,6 @@ false
 """
 isempty
 
-"""
-    hex2num(str)
-
-Convert a hexadecimal string to the floating point number it represents.
-"""
-hex2num
-
 """
     InexactError()
 
diff --git a/base/exports.jl b/base/exports.jl
index 376a9704b6d559..df7efcd8ef865f 100644
--- a/base/exports.jl
+++ b/base/exports.jl
@@ -340,7 +340,6 @@ export
     gamma,
     gcd,
     gcdx,
-    hex2num,
     hypot,
     imag,
     inv,
@@ -378,7 +377,6 @@ export
     nextpow2,
     nextprod,
     numerator,
-    num2hex,
     one,
     oneunit,
     powermod,
diff --git a/base/floatfuncs.jl b/base/floatfuncs.jl
index e75486a46257c5..30ff62e1790e65 100644
--- a/base/floatfuncs.jl
+++ b/base/floatfuncs.jl
@@ -24,20 +24,6 @@ maxintfloat() = maxintfloat(Float64)
 
 isinteger(x::AbstractFloat) = (x - trunc(x) == 0)
 
-num2hex(x::Float16) = hex(bitcast(UInt16, x), 4)
-num2hex(x::Float32) = hex(bitcast(UInt32, x), 8)
-num2hex(x::Float64) = hex(bitcast(UInt64, x), 16)
-
-function hex2num(s::AbstractString)
-    if length(s) <= 4
-        return bitcast(Float16, parse(UInt16, s, 16))
-    end
-    if length(s) <= 8
-        return bitcast(Float32, parse(UInt32, s, 16))
-    end
-    return bitcast(Float64, parse(UInt64, s, 16))
-end
-
 """
     round([T,] x, [digits, [base]], [r::RoundingMode])
 
diff --git a/base/intfuncs.jl b/base/intfuncs.jl
index 50bb11bd47f591..01ad9d2dc2f45c 100644
--- a/base/intfuncs.jl
+++ b/base/intfuncs.jl
@@ -483,8 +483,6 @@ function hex(x::Unsigned, pad::Int, neg::Bool)
     String(a)
 end
 
-num2hex(n::Integer) = hex(n, sizeof(n)*2)
-
 const base36digits = ['0':'9';'a':'z']
 const base62digits = ['0':'9';'A':'Z';'a':'z']
 
diff --git a/doc/src/stdlib/numbers.md b/doc/src/stdlib/numbers.md
index 36ee7e5634d2ff..8f9941b94890f2 100644
--- a/doc/src/stdlib/numbers.md
+++ b/doc/src/stdlib/numbers.md
@@ -40,8 +40,6 @@ Base.Math.significand
 Base.Math.exponent
 Base.complex(::Complex)
 Base.bswap
-Base.num2hex
-Base.hex2num
 Base.hex2bytes
 Base.bytes2hex
 ```