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12961480404 = 2231093988219
BaseRepresentation
bin11000001001001000…
…00111111011010100
31020110022022102111210
430010210013323110
5203021114333104
65542053301420
7636124523415
oct140444077324
936408272453
1012961480404
115551466084
122618934870
1312b7405c42
148ad5bd80c
1550cd93989
hex304907ed4

12961480404 has 24 divisors (see below), whose sum is σ = 30271155040. Its totient is φ = 4316536224.

The previous prime is 12961480403. The next prime is 12961480423. The reversal of 12961480404 is 40408416921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12961480403) 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, 480994 + ... + 507225.

Almost surely, 212961480404 is an apocalyptic number.

It is an amenable number.

12961480404 is an abundant number, since it is smaller than the sum of its proper divisors (17309674636).

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

12961480404 is a wasteful number, since it uses less digits than its factorization.

12961480404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 989319 (or 989317 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The spelling of 12961480404 in words is "twelve billion, nine hundred sixty-one million, four hundred eighty thousand, four hundred four".

Divisors: 1 2 3 4 6 12 1093 2186 3279 4372 6558 13116 988219 1976438 2964657 3952876 5929314 11858628 1080123367 2160246734 3240370101 4320493468 6480740202 12961480404