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12655260231 = 331136078067
BaseRepresentation
bin10111100100100111…
…11111001001000111
31012122222002211101220
423302103333021013
5201404221311411
65451434051423
7625415636265
oct136223771107
935588084356
1012655260231
115404623359
122552279b73
131268b3ab83
14880a6b435
154e1056b06
hex2f24ff247

12655260231 has 8 divisors (see below), whose sum is σ = 17417992704. Its totient is φ = 8164683960.

The previous prime is 12655260229. The next prime is 12655260259. The reversal of 12655260231 is 13206255621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12655260231 - 21 = 12655260229 is a prime.

It is a super-2 number, since 2×126552602312 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12655260192 and 12655260201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12655260271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68038941 + ... + 68039126.

It is an arithmetic number, because the mean of its divisors is an integer number (2177249088).

Almost surely, 212655260231 is an apocalyptic number.

12655260231 is a deficient number, since it is larger than the sum of its proper divisors (4762732473).

12655260231 is a wasteful number, since it uses less digits than its factorization.

12655260231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136078101.

The product of its (nonzero) digits is 21600, while the sum is 33.

The spelling of 12655260231 in words is "twelve billion, six hundred fifty-five million, two hundred sixty thousand, two hundred thirty-one".

Divisors: 1 3 31 93 136078067 408234201 4218420077 12655260231