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18830304464 = 2419169336587
BaseRepresentation
bin10001100010010111…
…111010010011010000
31210121022112120121212
4101202113322103100
5302031024220324
612352302435252
71234426642556
oct214227722320
953538476555
1018830304464
117a932414a4
123796292b28
131a11263bba
14ca8c03bd6
1575321970e
hex4625fa4d0

18830304464 has 40 divisors (see below), whose sum is σ = 38427644640. Its totient is φ = 8914105728.

The previous prime is 18830304463. The next prime is 18830304469. The reversal of 18830304464 is 46440303881.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18830304463) 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, 496379 + ... + 532965.

It is an arithmetic number, because the mean of its divisors is an integer number (960691116).

Almost surely, 218830304464 is an apocalyptic number.

It is an amenable number.

18830304464 is an abundant number, since it is smaller than the sum of its proper divisors (19597340176).

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

18830304464 is a wasteful number, since it uses less digits than its factorization.

18830304464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38307 (or 38301 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 41.

The spelling of 18830304464 in words is "eighteen billion, eight hundred thirty million, three hundred four thousand, four hundred sixty-four".

Divisors: 1 2 4 8 16 19 38 76 152 304 1693 3386 6772 13544 27088 32167 36587 64334 73174 128668 146348 257336 292696 514672 585392 695153 1390306 2780612 5561224 11122448 61941791 123883582 247767164 495534328 991068656 1176894029 2353788058 4707576116 9415152232 18830304464