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12340947180 = 2235533880801
BaseRepresentation
bin10110111111001001…
…11110100011101100
31011212001200001221210
423133210332203230
5200233240302210
65400325154420
7614551214562
oct133744764354
934761601853
1012340947180
115263163301
122484b5ba10
13121899b313
1485100da32
154c366be20
hex2df93e8ec

12340947180 has 48 divisors (see below), whose sum is σ = 35206635744. Its totient is φ = 3228825600.

The previous prime is 12340947169. The next prime is 12340947253. The reversal of 12340947180 is 8174904321.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1937221 + ... + 1943580.

It is an arithmetic number, because the mean of its divisors is an integer number (733471578).

Almost surely, 212340947180 is an apocalyptic number.

12340947180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12340947180 is an abundant number, since it is smaller than the sum of its proper divisors (22865688564).

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

12340947180 is a wasteful number, since it uses less digits than its factorization.

12340947180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3880866 (or 3880864 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The spelling of 12340947180 in words is "twelve billion, three hundred forty million, nine hundred forty-seven thousand, one hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 53 60 106 159 212 265 318 530 636 795 1060 1590 3180 3880801 7761602 11642403 15523204 19404005 23284806 38808010 46569612 58212015 77616020 116424030 205682453 232848060 411364906 617047359 822729812 1028412265 1234094718 2056824530 2468189436 3085236795 4113649060 6170473590 12340947180