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18872904496 = 243893032279
BaseRepresentation
bin10001100100111010…
…011010101100110000
31210201021200212212211
4101210322122230300
5302122430420441
612400423501504
71235455020115
oct214472325460
953637625784
1018872904496
118005298536
1237a85b7894
131a1a02b014
14cb073290c
15756d31a81
hex464e9ab30

18872904496 has 20 divisors (see below), whose sum is σ = 36660265200. Its totient is φ = 9412190912.

The previous prime is 18872904493. The next prime is 18872904511. The reversal of 18872904496 is 69440927881.

It is a self number, because there is not a number n which added to its sum of digits gives 18872904496.

It is not an unprimeable number, because it can be changed into a prime (18872904493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1509916 + ... + 1522363.

It is an arithmetic number, because the mean of its divisors is an integer number (1833013260).

Almost surely, 218872904496 is an apocalyptic number.

18872904496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18872904496 is a deficient number, since it is larger than the sum of its proper divisors (17787360704).

18872904496 is a wasteful number, since it uses less digits than its factorization.

18872904496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3032676 (or 3032670 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 58.

The spelling of 18872904496 in words is "eighteen billion, eight hundred seventy-two million, nine hundred four thousand, four hundred ninety-six".

Divisors: 1 2 4 8 16 389 778 1556 3112 6224 3032279 6064558 12129116 24258232 48516464 1179556531 2359113062 4718226124 9436452248 18872904496