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12226645768 = 2319312594789
BaseRepresentation
bin10110110001100001…
…11100111100001000
31011120002120221220011
423120300330330020
5200020010131033
65341123241304
7611662526401
oct133060747410
934502527804
1012226645768
115204693a27
122452819234
1311cb0bb14c
1483db789a8
154b85deccd
hex2d8c3cf08

12226645768 has 32 divisors (see below), whose sum is σ = 24909984000. Its totient is φ = 5604742080.

The previous prime is 12226645759. The next prime is 12226645771. The reversal of 12226645768 is 86754662221.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1292683 + ... + 1302106.

It is an arithmetic number, because the mean of its divisors is an integer number (778437000).

Almost surely, 212226645768 is an apocalyptic number.

It is an amenable number.

12226645768 is an abundant number, since it is smaller than the sum of its proper divisors (12683338232).

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

12226645768 is a wasteful number, since it uses less digits than its factorization.

12226645768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2594845 (or 2594841 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 49.

The spelling of 12226645768 in words is "twelve billion, two hundred twenty-six million, six hundred forty-five thousand, seven hundred sixty-eight".

Divisors: 1 2 4 8 19 31 38 62 76 124 152 248 589 1178 2356 4712 2594789 5189578 10379156 20758312 49300991 80438459 98601982 160876918 197203964 321753836 394407928 643507672 1528330721 3056661442 6113322884 12226645768