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38007072 = 2532131969
BaseRepresentation
bin1001000011111…
…1000100100000
32122111221220100
42100333010200
534212211242
63434342400
7641024535
oct220770440
978457810
1038007072
111a4aa304
121088aa00
137b496bc
145094d8c
15350b54c
hex243f120

38007072 has 36 divisors (see below), whose sum is σ = 108083430. Its totient is φ = 12668928.

The previous prime is 38007061. The next prime is 38007077. The reversal of 38007072 is 27070083.

It can be written as a sum of positive squares in only one way, i.e., 37015056 + 992016 = 6084^2 + 996^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (38007077) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 65697 + ... + 66272.

Almost surely, 238007072 is an apocalyptic number.

38007072 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

38007072 is an abundant number, since it is smaller than the sum of its proper divisors (70076358).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38007072 is a wasteful number, since it uses less digits than its factorization.

38007072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131985 (or 131974 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 38007072 is about 6164.9875912284. The cubic root of 38007072 is about 336.2183954302.

The spelling of 38007072 in words is "thirty-eight million, seven thousand, seventy-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 72 96 144 288 131969 263938 395907 527876 791814 1055752 1187721 1583628 2111504 2375442 3167256 4223008 4750884 6334512 9501768 12669024 19003536 38007072