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12740212894 = 229733299671
BaseRepresentation
bin10111101110110000…
…00011100010011110
31012212212221212112211
423313120003202132
5202042443303034
65504110551034
7630500010553
oct136730034236
935785855484
1012740212894
115448577572
12257680847a
131280613616
1488c062a2a
154e8737d64
hex2f760389e

12740212894 has 16 divisors (see below), whose sum is σ = 19796332320. Its totient is φ = 6142036320.

The previous prime is 12740212853. The next prime is 12740212951. The reversal of 12740212894 is 49821204721.

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, 107322 + ... + 192349.

It is an arithmetic number, because the mean of its divisors is an integer number (1237270770).

Almost surely, 212740212894 is an apocalyptic number.

12740212894 is a deficient number, since it is larger than the sum of its proper divisors (7056119426).

12740212894 is a wasteful number, since it uses less digits than its factorization.

12740212894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300435.

The product of its (nonzero) digits is 64512, while the sum is 40.

The spelling of 12740212894 in words is "twelve billion, seven hundred forty million, two hundred twelve thousand, eight hundred ninety-four".

Divisors: 1 2 29 58 733 1466 21257 42514 299671 599342 8690459 17380918 219658843 439317686 6370106447 12740212894