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38135944 = 2371161909
BaseRepresentation
bin1001000101111…
…0100010001000
32122202111200101
42101132202020
534230322234
63441215144
7642102340
oct221364210
978674611
1038135944
111a588110
12109314b4
137b93262
1450c9d20
153534814
hex245e888

38135944 has 32 divisors (see below), whose sum is σ = 89150400. Its totient is φ = 14857920.

The previous prime is 38135917. The next prime is 38135963. The reversal of 38135944 is 44953183.

It is a super-2 number, since 2×381359442 = 2908700449542272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30339 + ... + 31570.

It is an arithmetic number, because the mean of its divisors is an integer number (2785950).

Almost surely, 238135944 is an apocalyptic number.

It is an amenable number.

38135944 is an abundant number, since it is smaller than the sum of its proper divisors (51014456).

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

38135944 is a wasteful number, since it uses less digits than its factorization.

38135944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61933 (or 61929 counting only the distinct ones).

The product of its digits is 51840, while the sum is 37.

The square root of 38135944 is about 6175.4306732405. The cubic root of 38135944 is about 336.5979761612.

The spelling of 38135944 in words is "thirty-eight million, one hundred thirty-five thousand, nine hundred forty-four".

Divisors: 1 2 4 7 8 11 14 22 28 44 56 77 88 154 308 616 61909 123818 247636 433363 495272 680999 866726 1361998 1733452 2723996 3466904 4766993 5447992 9533986 19067972 38135944