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12858156048 = 243267878251
BaseRepresentation
bin10111111100110011…
…11110010000010000
31020012002220000010210
423332121332100100
5202313141443143
65523522524120
7633431344263
oct137631762020
936162800123
1012858156048
1154a9103a51
1225aa206640
13129bb9a27a
1489d9a4cda
15503c84033
hex2fe67e410

12858156048 has 20 divisors (see below), whose sum is σ = 33216903248. Its totient is φ = 4286052000.

The previous prime is 12858155987. The next prime is 12858156067. The reversal of 12858156048 is 84065185821.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 267878251 = 12858156048 / (1 + 2 + 8 + 5 + 8 + 1 + 5 + 6 + 0 + 4 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 12858155988 and 12858156006.

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, 133939078 + ... + 133939173.

Almost surely, 212858156048 is an apocalyptic number.

It is an amenable number.

12858156048 is an abundant number, since it is smaller than the sum of its proper divisors (20358747200).

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

12858156048 is a wasteful number, since it uses less digits than its factorization.

12858156048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267878262 (or 267878256 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 48.

The spelling of 12858156048 in words is "twelve billion, eight hundred fifty-eight million, one hundred fifty-six thousand, forty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 48 267878251 535756502 803634753 1071513004 1607269506 2143026008 3214539012 4286052016 6429078024 12858156048