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18887013614 = 276122115941
BaseRepresentation
bin10001100101110000…
…001111010011101110
31210202021020200221202
4101211300033103232
5302140033413424
612402050125502
71236015652430
oct214560172356
953667220852
1018887013614
118012254967
1237b1280892
131a1cc2b001
14cb2566650
157581bc2ae
hex465c0f4ee

18887013614 has 16 divisors (see below), whose sum is σ = 32908521696. Its totient is φ = 7961738400.

The previous prime is 18887013601. The next prime is 18887013641. The reversal of 18887013614 is 41631078881.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11057117 + ... + 11058824.

It is an arithmetic number, because the mean of its divisors is an integer number (2056782606).

Almost surely, 218887013614 is an apocalyptic number.

18887013614 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18887013614 is a deficient number, since it is larger than the sum of its proper divisors (14021508082).

18887013614 is a wasteful number, since it uses less digits than its factorization.

18887013614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22116011.

The product of its (nonzero) digits is 258048, while the sum is 47.

The spelling of 18887013614 in words is "eighteen billion, eight hundred eighty-seven million, thirteen thousand, six hundred fourteen".

Divisors: 1 2 7 14 61 122 427 854 22115941 44231882 154811587 309623174 1349072401 2698144802 9443506807 18887013614