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38864508 = 22316931913
BaseRepresentation
bin1001010001000…
…0011001111100
32201010112002020
42110100121330
534422131013
63505000140
7651225414
oct224203174
981115066
1038864508
111aa35531
1211023050
138089a67
145239644
15362a623
hex251067c

38864508 has 24 divisors (see below), whose sum is σ = 90784848. Its totient is φ = 12940416.

The previous prime is 38864459. The next prime is 38864509. The reversal of 38864508 is 80546883.

It is a self number, because there is not a number n which added to its sum of digits gives 38864508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38864509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19360 + ... + 21272.

It is an arithmetic number, because the mean of its divisors is an integer number (3782702).

Almost surely, 238864508 is an apocalyptic number.

It is an amenable number.

38864508 is an abundant number, since it is smaller than the sum of its proper divisors (51920340).

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

38864508 is a wasteful number, since it uses less digits than its factorization.

38864508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3613 (or 3611 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 42.

The square root of 38864508 is about 6234.1405181468. The cubic root of 38864508 is about 338.7279689561.

The spelling of 38864508 in words is "thirty-eight million, eight hundred sixty-four thousand, five hundred eight".

Divisors: 1 2 3 4 6 12 1693 1913 3386 3826 5079 5739 6772 7652 10158 11478 20316 22956 3238709 6477418 9716127 12954836 19432254 38864508