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12271648888 = 2313191162969
BaseRepresentation
bin10110110110111001…
…01000000001111000
31011200020021100120101
423123130220001320
5200113020231023
65345412005144
7613050203002
oct133334500170
934606240511
1012271648888
115228031494
1224659007b4
131207517005
14845b31372
154bc52e1ad
hex2db728078

12271648888 has 16 divisors (see below), whose sum is σ = 23026806000. Its totient is φ = 6131167296.

The previous prime is 12271648859. The next prime is 12271648927. The reversal of 12271648888 is 88884617221.

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 3 ways as a sum of consecutive naturals, for example, 570933 + ... + 592036.

It is an arithmetic number, because the mean of its divisors is an integer number (1439175375).

Almost surely, 212271648888 is an apocalyptic number.

It is an amenable number.

12271648888 is a deficient number, since it is larger than the sum of its proper divisors (10755157112).

12271648888 is a wasteful number, since it uses less digits than its factorization.

12271648888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1164294 (or 1164290 counting only the distinct ones).

The product of its digits is 2752512, while the sum is 55.

The spelling of 12271648888 in words is "twelve billion, two hundred seventy-one million, six hundred forty-eight thousand, eight hundred eighty-eight".

Divisors: 1 2 4 8 1319 2638 5276 10552 1162969 2325938 4651876 9303752 1533956111 3067912222 6135824444 12271648888