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18423862054 = 2138931125601
BaseRepresentation
bin10001001010001001…
…011101001100100110
31202112222202011110021
4101022021131030212
5300213002041204
612244103145354
71221363146353
oct211211351446
952488664407
1018423862054
1178a4876284
1236a214525a
131977ca8130
14c6ac4362a
1572c6d2154
hex44a25d326

18423862054 has 32 divisors (see below), whose sum is σ = 30193974720. Its totient is φ = 8380416000.

The previous prime is 18423862043. The next prime is 18423862073. The reversal of 18423862054 is 45026832481.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 18423862054.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 706854 + ... + 732454.

It is an arithmetic number, because the mean of its divisors is an integer number (943561710).

Almost surely, 218423862054 is an apocalyptic number.

18423862054 is a deficient number, since it is larger than the sum of its proper divisors (11770112666).

18423862054 is a wasteful number, since it uses less digits than its factorization.

18423862054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26016.

The product of its (nonzero) digits is 368640, while the sum is 43.

The spelling of 18423862054 in words is "eighteen billion, four hundred twenty-three million, eight hundred sixty-two thousand, fifty-four".

Divisors: 1 2 13 26 89 178 311 622 1157 2314 4043 8086 25601 27679 51202 55358 332813 359827 665626 719654 2278489 4556978 7961911 15923822 29620357 59240714 103504843 207009686 708610079 1417220158 9211931027 18423862054