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12906262313442 = 2321637438005237
BaseRepresentation
bin1011101111001111100100…
…1011100011100111100010
31200200211022121111200002200
42323303321023203213202
53142424011123012232
643241015520354030
72501306132406441
oct273637113434742
950624277450080
1012906262313442
114126573679453
1215453a1175916
137280946a89b4
14328948976d58
15175ac50ec77c
hexbbcf92e39e2

12906262313442 has 24 divisors (see below), whose sum is σ = 27980650613916. Its totient is φ = 4299459396576.

The previous prime is 12906262313437. The next prime is 12906262313443. The reversal of 12906262313442 is 24431326260921.

12906262313442 is a `hidden beast` number, since 1 + 2 + 9 + 0 + 6 + 2 + 623 + 13 + 4 + 4 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 12901379238801 + 4883074641 = 3591849^2 + 69879^2 .

It is not an unprimeable number, because it can be changed into a prime (12906262313443) 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, 218973153 + ... + 219032084.

Almost surely, 212906262313442 is an apocalyptic number.

12906262313442 is an abundant number, since it is smaller than the sum of its proper divisors (15074388300474).

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

12906262313442 is a wasteful number, since it uses less digits than its factorization.

12906262313442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438006882 (or 438006879 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 45.

The spelling of 12906262313442 in words is "twelve trillion, nine hundred six billion, two hundred sixty-two million, three hundred thirteen thousand, four hundred forty-two".

Divisors: 1 2 3 6 9 18 1637 3274 4911 9822 14733 29466 438005237 876010474 1314015711 2628031422 3942047133 7884094266 717014572969 1434029145938 2151043718907 4302087437814 6453131156721 12906262313442