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38901913 = 199233839
BaseRepresentation
bin1001010001100…
…1100010011001
32201012102101121
42110121202121
534424330123
63505445241
7651442441
oct224314231
981172347
1038901913
111aa60646
1211040821
1380a0aab
145249121
15363675d
hex2519899

38901913 has 8 divisors (see below), whose sum is σ = 39312000. Its totient is φ = 38494368.

The previous prime is 38901893. The next prime is 38901959. The reversal of 38901913 is 31910983.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-38901913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38901413) 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, 45948 + ... + 46786.

It is an arithmetic number, because the mean of its divisors is an integer number (4914000).

Almost surely, 238901913 is an apocalyptic number.

It is an amenable number.

38901913 is a deficient number, since it is larger than the sum of its proper divisors (410087).

38901913 is a wasteful number, since it uses less digits than its factorization.

38901913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1271.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 38901913 is about 6237.1398092395. The cubic root of 38901913 is about 338.8366032666.

The spelling of 38901913 in words is "thirty-eight million, nine hundred one thousand, nine hundred thirteen".

Divisors: 1 199 233 839 46367 166961 195487 38901913