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38251663093 = 717794068893
BaseRepresentation
bin100011100111111110…
…100000111011110101
310122201211020211010201
4203213332200323311
51111314411204333
625323401520501
72522624525440
oct434776407365
9118654224121
1038251663093
111524a080706
1274b64a3131
1337b7ab0897
141bcc302657
15edd28617d
hex8e7fa0ef5

38251663093 has 16 divisors (see below), whose sum is σ = 46873658880. Its totient is φ = 30467863296.

The previous prime is 38251663039. The next prime is 38251663097. The reversal of 38251663093 is 39036615283.

It is a cyclic number.

It is not a de Polignac number, because 38251663093 - 213 = 38251654901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38251663097) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2025046 + ... + 2043847.

It is an arithmetic number, because the mean of its divisors is an integer number (2929603680).

Almost surely, 238251663093 is an apocalyptic number.

It is an amenable number.

38251663093 is a deficient number, since it is larger than the sum of its proper divisors (8621995787).

38251663093 is a wasteful number, since it uses less digits than its factorization.

38251663093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4068996.

The product of its (nonzero) digits is 699840, while the sum is 46.

The spelling of 38251663093 in words is "thirty-eight billion, two hundred fifty-one million, six hundred sixty-three thousand, ninety-three".

Divisors: 1 7 17 79 119 553 1343 9401 4068893 28482251 69171181 321442547 484198267 2250097829 5464523299 38251663093