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38691051396 = 22312725387829
BaseRepresentation
bin100100000010001010…
…101001011110000100
310200212110001001120120
4210002022221132010
51113214402121041
625435135301540
72536541340054
oct440212513604
9120773031516
1038691051396
11154550a9638
1275b967a8b0
133857b3346a
141c307db564
151016b2a366
hex9022a9784

38691051396 has 24 divisors (see below), whose sum is σ = 90989982720. Its totient is φ = 12795465312.

The previous prime is 38691051379. The next prime is 38691051397. The reversal of 38691051396 is 69315019683.

It is not an unprimeable number, because it can be changed into a prime (38691051397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12692391 + ... + 12695438.

It is an arithmetic number, because the mean of its divisors is an integer number (3791249280).

Almost surely, 238691051396 is an apocalyptic number.

It is an amenable number.

38691051396 is an abundant number, since it is smaller than the sum of its proper divisors (52298931324).

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

38691051396 is a wasteful number, since it uses less digits than its factorization.

38691051396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25387963 (or 25387961 counting only the distinct ones).

The product of its (nonzero) digits is 1049760, while the sum is 51.

The spelling of 38691051396 in words is "thirty-eight billion, six hundred ninety-one million, fifty-one thousand, three hundred ninety-six".

Divisors: 1 2 3 4 6 12 127 254 381 508 762 1524 25387829 50775658 76163487 101551316 152326974 304653948 3224254283 6448508566 9672762849 12897017132 19345525698 38691051396