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12258995472 = 2432194480627
BaseRepresentation
bin10110110101011000…
…10110110100010000
31011122100110111100100
423122230112310100
5200101300323342
65344240452400
7612534512403
oct133254266420
934570414310
1012258995472
115220979819
12246161a100
131204a06799
14844199d3a
154bb37ee4c
hex2dab16d10

12258995472 has 60 divisors (see below), whose sum is σ = 36113861680. Its totient is φ = 3871260864.

The previous prime is 12258995471. The next prime is 12258995501. The reversal of 12258995472 is 27459985221.

12258995472 is a `hidden beast` number, since 1 + 2 + 2 + 5 + 8 + 99 + 547 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (12258995471) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2237578 + ... + 2243049.

Almost surely, 212258995472 is an apocalyptic number.

12258995472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12258995472 is an abundant number, since it is smaller than the sum of its proper divisors (23854866208).

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

12258995472 is a wasteful number, since it uses less digits than its factorization.

12258995472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4480660 (or 4480651 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 54.

The spelling of 12258995472 in words is "twelve billion, two hundred fifty-eight million, nine hundred ninety-five thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 19 24 36 38 48 57 72 76 114 144 152 171 228 304 342 456 684 912 1368 2736 4480627 8961254 13441881 17922508 26883762 35845016 40325643 53767524 71690032 80651286 85131913 107535048 161302572 170263826 215070096 255395739 322605144 340527652 510791478 645210288 681055304 766187217 1021582956 1362110608 1532374434 2043165912 3064748868 4086331824 6129497736 12258995472