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309317902361 = 13538918232767
BaseRepresentation
bin1001000000001001100…
…10001010000000011001
31002120101220012111210222
410200010302022000121
520031440340333421
6354033152045425
731230120534416
oct4400462120031
91076356174728
10309317902361
1110a1a998a256
124bb45b33875
13232264073c0
1410d8486b10d
1580a5733cab
hex4804c8a019

309317902361 has 32 divisors (see below), whose sum is σ = 343522529280. Its totient is φ = 276737370624.

The previous prime is 309317902357. The next prime is 309317902379. The reversal of 309317902361 is 163209713903.

It is a happy number.

It is not a de Polignac number, because 309317902361 - 22 = 309317902357 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (309317902301) 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 31 ways as a sum of consecutive naturals, for example, 111786800 + ... + 111789566.

It is an arithmetic number, because the mean of its divisors is an integer number (10735079040).

Almost surely, 2309317902361 is an apocalyptic number.

It is an amenable number.

309317902361 is a deficient number, since it is larger than the sum of its proper divisors (34204626919).

309317902361 is a wasteful number, since it uses less digits than its factorization.

309317902361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4745.

The product of its (nonzero) digits is 183708, while the sum is 44.

The spelling of 309317902361 in words is "three hundred nine billion, three hundred seventeen million, nine hundred two thousand, three hundred sixty-one".

Divisors: 1 13 53 89 689 1157 1823 2767 4717 23699 35971 61321 96619 146651 162247 246263 1256047 1906463 2109211 3201419 5044241 8599091 13051939 65575133 111788183 169675207 267344773 448937449 3475482049 5836186837 23793684797 309317902361