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13212859974 = 2316722812
BaseRepresentation
bin11000100111000110…
…00011111001000110
31021002211022211110020
430103203003321012
5204024443004344
610023033240010
7645266312436
oct142343037106
937084284406
1013212859974
115670351296
122688b63006
13132750c552
148d4b382c6
15524e9b719
hex3138c3e46

13212859974 has 36 divisors (see below), whose sum is σ = 26679850212. Its totient is φ = 4362333920.

The previous prime is 13212859973. The next prime is 13212859981. The reversal of 13212859974 is 47995821231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13212859973) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 47020714 + ... + 47020994.

Almost surely, 213212859974 is an apocalyptic number.

13212859974 is an abundant number, since it is smaller than the sum of its proper divisors (13466990238).

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

13212859974 is an frugal number, since it uses more digits than its factorization.

13212859974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901 (or 453 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 51.

The spelling of 13212859974 in words is "thirteen billion, two hundred twelve million, eight hundred fifty-nine thousand, nine hundred seventy-four".

Divisors: 1 2 3 6 167 281 334 501 562 843 1002 1686 27889 46927 55778 78961 83667 93854 140781 157922 167334 236883 281562 473766 7836809 13186487 15673618 23510427 26372974 39559461 47020854 79118922 2202143329 4404286658 6606429987 13212859974