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12897954046 = 273280331517
BaseRepresentation
bin11000000001100011…
…10010100011111110
31020021212202221201201
430000301302203332
5202403334012141
65531503530114
7634423541365
oct140061624376
936255687651
1012897954046
11551961685a
1225bb5b993a
1312a71c2b93
148a4da47dc
155074e6031
hex300c728fe

12897954046 has 16 divisors (see below), whose sum is σ = 19619576784. Its totient is φ = 6358163904.

The previous prime is 12897954001. The next prime is 12897954049. The reversal of 12897954046 is 64045979821.

12897954046 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12897954049) 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, 393480 + ... + 424996.

It is an arithmetic number, because the mean of its divisors is an integer number (1226223549).

Almost surely, 212897954046 is an apocalyptic number.

12897954046 is a deficient number, since it is larger than the sum of its proper divisors (6721622738).

12897954046 is a wasteful number, since it uses less digits than its factorization.

12897954046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34395.

The product of its (nonzero) digits is 4354560, while the sum is 55.

The spelling of 12897954046 in words is "twelve billion, eight hundred ninety-seven million, nine hundred fifty-four thousand, forty-six".

Divisors: 1 2 73 146 2803 5606 31517 63034 204619 409238 2300741 4601482 88342151 176684302 6448977023 12897954046