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38871265 = 5172359337
BaseRepresentation
bin1001010001001…
…0000011100001
32201010212100111
42110102003201
534422340030
63505051321
7651254206
oct224220341
981125314
1038871265
111aa3a614
1211026b41
13808cb64
14523bcad
15362c62a
hex25120e1

38871265 has 32 divisors (see below), whose sum is σ = 52565760. Its totient is φ = 27439104.

The previous prime is 38871263. The next prime is 38871317. The reversal of 38871265 is 56217883.

It is a cyclic number.

It is not a de Polignac number, because 38871265 - 21 = 38871263 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38871263) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 115177 + ... + 115513.

It is an arithmetic number, because the mean of its divisors is an integer number (1642680).

Almost surely, 238871265 is an apocalyptic number.

It is an amenable number.

38871265 is a deficient number, since it is larger than the sum of its proper divisors (13694495).

38871265 is a wasteful number, since it uses less digits than its factorization.

38871265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441.

The product of its digits is 80640, while the sum is 40.

The square root of 38871265 is about 6234.6824297634. The cubic root of 38871265 is about 338.7475982818.

The spelling of 38871265 in words is "thirty-eight million, eight hundred seventy-one thousand, two hundred sixty-five".

Divisors: 1 5 17 23 59 85 115 295 337 391 1003 1357 1685 1955 5015 5729 6785 7751 19883 23069 28645 38755 99415 115345 131767 338011 457309 658835 1690055 2286545 7774253 38871265