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12290133861 = 333122631801
BaseRepresentation
bin10110111001000110…
…01000111101100101
31011201112001111012000
423130203020331211
5200132233240421
65351312115513
7613363262025
oct133443107545
934645044160
1012290133861
115237507525
12246bb35b99
13120b2b9975
14848383a85
154bde81226
hex2dc8c8f65

12290133861 has 48 divisors (see below), whose sum is σ = 18895916160. Its totient is φ = 7894584000.

The previous prime is 12290133841. The next prime is 12290133871. The reversal of 12290133861 is 16833109221.

It is not a de Polignac number, because 12290133861 - 25 = 12290133829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12290133841) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6823161 + ... + 6824961.

It is an arithmetic number, because the mean of its divisors is an integer number (393664920).

Almost surely, 212290133861 is an apocalyptic number.

It is an amenable number.

12290133861 is a deficient number, since it is larger than the sum of its proper divisors (6605782299).

12290133861 is a wasteful number, since it uses less digits than its factorization.

12290133861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2135 (or 2098 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The spelling of 12290133861 in words is "twelve billion, two hundred ninety million, one hundred thirty-three thousand, eight hundred sixty-one".

Divisors: 1 3 9 27 31 93 263 279 789 837 961 1801 2367 2883 5403 7101 8153 8649 16209 24459 25947 48627 55831 73377 167493 220131 252743 473663 502479 758229 1420989 1507437 1730761 2274687 4262967 5192283 6824061 12788901 14683553 15576849 44050659 46730547 132151977 396455931 455190143 1365570429 4096711287 12290133861