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12730488892 = 2211231848473
BaseRepresentation
bin10111101101100101…
…11101100000111100
31012212012122211201121
423312302331200330
5202033001121032
65503122320324
7630321240652
oct136662754074
935765584647
1012730488892
115443035800
1225734b90a4
13127b5ba584
1488aa50dd2
154e7966a97
hex2f6cbd83c

12730488892 has 36 divisors (see below), whose sum is σ = 25277737408. Its totient is φ = 5599915200.

The previous prime is 12730488877. The next prime is 12730488919. The reversal of 12730488892 is 29888403721.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 409233 + ... + 439240.

Almost surely, 212730488892 is an apocalyptic number.

It is an amenable number.

12730488892 is a deficient number, since it is larger than the sum of its proper divisors (12547248516).

12730488892 is a wasteful number, since it uses less digits than its factorization.

12730488892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848530 (or 848517 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 52.

The spelling of 12730488892 in words is "twelve billion, seven hundred thirty million, four hundred eighty-eight thousand, eight hundred ninety-two".

Divisors: 1 2 4 11 22 31 44 62 121 124 242 341 484 682 1364 3751 7502 15004 848473 1696946 3393892 9333203 18666406 26302663 37332812 52605326 102665233 105210652 205330466 289329293 410660932 578658586 1157317172 3182622223 6365244446 12730488892