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12853765454 = 2431297115237
BaseRepresentation
bin10111111100010010…
…01110010101001110
31020011210121221101012
423332021032111032
5202311030443304
65523244445222
7633346126565
oct137611162516
936153557335
1012853765454
1154a6685262
1225a8849812
13129acc099a
1489d180bdc
155036b816e
hex2fe24e54e

12853765454 has 16 divisors (see below), whose sum is σ = 19744417968. Its totient is φ = 6272525952.

The previous prime is 12853765447. The next prime is 12853765489. The reversal of 12853765454 is 45456735821.

It is a super-2 number, since 2×128537654542 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53924 + ... + 169160.

It is an arithmetic number, because the mean of its divisors is an integer number (1234026123).

Almost surely, 212853765454 is an apocalyptic number.

12853765454 is a deficient number, since it is larger than the sum of its proper divisors (6890652514).

12853765454 is a wasteful number, since it uses less digits than its factorization.

12853765454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116579.

The product of its digits is 4032000, while the sum is 50.

The spelling of 12853765454 in words is "twelve billion, eight hundred fifty-three million, seven hundred sixty-five thousand, four hundred fifty-four".

Divisors: 1 2 43 86 1297 2594 55771 111542 115237 230474 4955191 9910382 149462389 298924778 6426882727 12853765454