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13479966357 = 3111331421833
BaseRepresentation
bin11001000110111011…
…11111011010010101
31021210102221020112020
430203131333122111
5210101332410412
610105334243353
7655021552314
oct144335773225
937712836466
1013479966357
1157980a9270
1227424b6559
13136a961270
1491c3c827b
1553d65e18c
hex32377f695

13479966357 has 16 divisors (see below), whose sum is σ = 21115472448. Its totient is φ = 7541239680.

The previous prime is 13479966343. The next prime is 13479966361. The reversal of 13479966357 is 75366997431.

It is a happy number.

It is not a de Polignac number, because 13479966357 - 24 = 13479966341 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13479966357.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13479966307) 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, 15710488 + ... + 15711345.

It is an arithmetic number, because the mean of its divisors is an integer number (1319717028).

Almost surely, 213479966357 is an apocalyptic number.

It is an amenable number.

13479966357 is a deficient number, since it is larger than the sum of its proper divisors (7635506091).

13479966357 is a wasteful number, since it uses less digits than its factorization.

13479966357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31421860.

The product of its digits is 25719120, while the sum is 60.

The spelling of 13479966357 in words is "thirteen billion, four hundred seventy-nine million, nine hundred sixty-six thousand, three hundred fifty-seven".

Divisors: 1 3 11 13 33 39 143 429 31421833 94265499 345640163 408483829 1036920489 1225451487 4493322119 13479966357