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12747754516 = 227701364919
BaseRepresentation
bin10111101111101001…
…10100110000010100
31012220102011000201011
423313310310300110
5202101411121031
65504540342004
7630621061030
oct136764646024
935812130634
1012747754516
115451858712
122579244904
131282054213
1488d0671c0
154e92276b1
hex2f7d34c14

12747754516 has 24 divisors (see below), whose sum is σ = 25499537280. Its totient is φ = 5462460192.

The previous prime is 12747754469. The next prime is 12747754519. The reversal of 12747754516 is 61545774721.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 12747754516.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12747754519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163905 + ... + 228823.

It is an arithmetic number, because the mean of its divisors is an integer number (1062480720).

Almost surely, 212747754516 is an apocalyptic number.

It is an amenable number.

12747754516 is an abundant number, since it is smaller than the sum of its proper divisors (12751782764).

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

12747754516 is a wasteful number, since it uses less digits than its factorization.

12747754516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71943 (or 71941 counting only the distinct ones).

The product of its digits is 1646400, while the sum is 49.

The spelling of 12747754516 in words is "twelve billion, seven hundred forty-seven million, seven hundred fifty-four thousand, five hundred sixteen".

Divisors: 1 2 4 7 14 28 7013 14026 28052 49091 64919 98182 129838 196364 259676 454433 908866 1817732 455276947 910553894 1821107788 3186938629 6373877258 12747754516