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18936266704 = 2419371683523
BaseRepresentation
bin10001101000101100…
…000111111111010000
31210212200221000111021
4101220230013333100
5302240141013304
612411005525224
71240154416435
oct215054077720
953780830437
1018936266704
1180380354a3
123805873814
131a2a1b4454
14cb8d07b8c
1575c69aa54
hex468b07fd0

18936266704 has 40 divisors (see below), whose sum is σ = 39663825440. Its totient is φ = 8727378048.

The previous prime is 18936266623. The next prime is 18936266711. The reversal of 18936266704 is 40766263981.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 830514 + ... + 853009.

It is an arithmetic number, because the mean of its divisors is an integer number (991595636).

Almost surely, 218936266704 is an apocalyptic number.

It is an amenable number.

18936266704 is an abundant number, since it is smaller than the sum of its proper divisors (20727558736).

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

18936266704 is a wasteful number, since it uses less digits than its factorization.

18936266704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1683587 (or 1683581 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 52.

The spelling of 18936266704 in words is "eighteen billion, nine hundred thirty-six million, two hundred sixty-six thousand, seven hundred four".

Divisors: 1 2 4 8 16 19 37 38 74 76 148 152 296 304 592 703 1406 2812 5624 11248 1683523 3367046 6734092 13468184 26936368 31986937 62290351 63973874 124580702 127947748 249161404 255895496 498322808 511790992 996645616 1183516669 2367033338 4734066676 9468133352 18936266704