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13161574434394 = 247974991832057
BaseRepresentation
bin1011111110000110101011…
…1110000000011001011010
31201121020022202022020020101
42333201222332000121122
53211114401023400034
643554202133250014
72525615040545341
oct277415276003132
951536282266211
1013161574434394
114214879712801
12158697479390a
13746192179309
14337048a96b58
1517c569473514
hexbf86af8065a

13161574434394 has 16 divisors (see below), whose sum is σ = 19786226400000. Its totient is φ = 6566169314464.

The previous prime is 13161574434377. The next prime is 13161574434413. The reversal of 13161574434394 is 49343447516131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6268014 + ... + 8100070.

It is an arithmetic number, because the mean of its divisors is an integer number (1236639150000).

Almost surely, 213161574434394 is an apocalyptic number.

13161574434394 is a deficient number, since it is larger than the sum of its proper divisors (6624651965606).

13161574434394 is a wasteful number, since it uses less digits than its factorization.

13161574434394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1840037.

The product of its digits is 13063680, while the sum is 55.

The spelling of 13161574434394 in words is "thirteen trillion, one hundred sixty-one billion, five hundred seventy-four million, four hundred thirty-four thousand, three hundred ninety-four".

Divisors: 1 2 479 958 7499 14998 1832057 3592021 3664114 7184042 877555303 1755110606 13738595443 27477190886 6580787217197 13161574434394