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13215626012 = 2219716771099
BaseRepresentation
bin11000100111011011…
…00111001100011100
31021010000112100202002
430103231213030130
5204031200013022
610023212421432
7645331652621
oct142355471434
937100470662
1013215626012
115671970476
122689a77878
131327c6a564
148d5258348
15525346092
hex313b6731c

13215626012 has 12 divisors (see below), whose sum is σ = 23244744600. Its totient is φ = 6574270416.

The previous prime is 13215626003. The next prime is 13215626069. The reversal of 13215626012 is 21062651231.

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, 8384762 + ... + 8386337.

It is an arithmetic number, because the mean of its divisors is an integer number (1937062050).

Almost surely, 213215626012 is an apocalyptic number.

It is an amenable number.

13215626012 is a deficient number, since it is larger than the sum of its proper divisors (10029118588).

13215626012 is a wasteful number, since it uses less digits than its factorization.

13215626012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16771300 (or 16771298 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The spelling of 13215626012 in words is "thirteen billion, two hundred fifteen million, six hundred twenty-six thousand, twelve".

Divisors: 1 2 4 197 394 788 16771099 33542198 67084396 3303906503 6607813006 13215626012