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14978830992 = 243312058979
BaseRepresentation
bin11011111001100111…
…01101001010010000
31102122220022110021020
431330303231022100
5221134040042432
610514200155440
71040121651126
oct157463551220
942586273236
1014978830992
116397183474
122aa0468b80
131549346808
14a214b3916
155ca03222c
hex37cced290

14978830992 has 20 divisors (see below), whose sum is σ = 38695313520. Its totient is φ = 4992943648.

The previous prime is 14978830963. The next prime is 14978831003. The reversal of 14978830992 is 29903887941.

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, 156029442 + ... + 156029537.

It is an arithmetic number, because the mean of its divisors is an integer number (1934765676).

Almost surely, 214978830992 is an apocalyptic number.

14978830992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

14978830992 is an abundant number, since it is smaller than the sum of its proper divisors (23716482528).

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

14978830992 is a wasteful number, since it uses less digits than its factorization.

14978830992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312058990 (or 312058984 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 60.

The spelling of 14978830992 in words is "fourteen billion, nine hundred seventy-eight million, eight hundred thirty thousand, nine hundred ninety-two".

Divisors: 1 2 3 4 6 8 12 16 24 48 312058979 624117958 936176937 1248235916 1872353874 2496471832 3744707748 4992943664 7489415496 14978830992