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38913604389 = 3411231898873
BaseRepresentation
bin100100001111011011…
…100111101100100101
310201102221210220220000
4210033123213230211
51114143340320024
625513205331513
72545213115442
oct441733475445
9121387726800
1038913604389
1115559795a30
127660106b99
133891c85c1a
141c521b09c9
15102b43bcc9
hex90f6e7b25

38913604389 has 40 divisors (see below), whose sum is σ = 66171961152. Its totient is φ = 22558599360.

The previous prime is 38913604361. The next prime is 38913604393. The reversal of 38913604389 is 98340631983.

It is not a de Polignac number, because 38913604389 - 29 = 38913603877 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38913605389) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 928944 + ... + 969929.

Almost surely, 238913604389 is an apocalyptic number.

It is an amenable number.

38913604389 is a deficient number, since it is larger than the sum of its proper divisors (27258356763).

38913604389 is a wasteful number, since it uses less digits than its factorization.

38913604389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1898919 (or 1898910 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 54.

The spelling of 38913604389 in words is "thirty-eight billion, nine hundred thirteen million, six hundred four thousand, three hundred eighty-nine".

Divisors: 1 3 9 11 23 27 33 69 81 99 207 253 297 621 759 891 1863 2277 6831 20493 1898873 5696619 17089857 20887603 43674079 51269571 62662809 131022237 153808713 187988427 393066711 480414869 563965281 1179200133 1441244607 1691895843 3537600399 4323733821 12971201463 38913604389