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12304846640 = 245179859277
BaseRepresentation
bin10110111010110110…
…10000111100110000
31011202112201222022202
423131123100330300
5200200020043030
65352555322332
7613632320312
oct133533207460
934675658282
1012304846640
115244846449
122474a503a8
13121136b658
1484a2d37b2
154c03da745
hex2dd6d0f30

12304846640 has 40 divisors (see below), whose sum is σ = 28768627440. Its totient is φ = 4894436096.

The previous prime is 12304846579. The next prime is 12304846643. The reversal of 12304846640 is 4664840321.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 12304846594 and 12304846603.

It is not an unprimeable number, because it can be changed into a prime (12304846643) 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, 415319 + ... + 443958.

It is an arithmetic number, because the mean of its divisors is an integer number (719215686).

Almost surely, 212304846640 is an apocalyptic number.

12304846640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12304846640 is an abundant number, since it is smaller than the sum of its proper divisors (16463780800).

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

12304846640 is a wasteful number, since it uses less digits than its factorization.

12304846640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859469 (or 859463 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 38.

The spelling of 12304846640 in words is "twelve billion, three hundred four million, eight hundred forty-six thousand, six hundred forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 179 358 716 895 1432 1790 2864 3580 7160 14320 859277 1718554 3437108 4296385 6874216 8592770 13748432 17185540 34371080 68742160 153810583 307621166 615242332 769052915 1230484664 1538105830 2460969328 3076211660 6152423320 12304846640