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12961036683 = 327205730741
BaseRepresentation
bin11000001001000100…
…11011100110001011
31020110021110212211200
430010202123212023
5203021011133213
65542035555243
7636120664650
oct140442334613
936407425750
1012961036683
115551192771
12261875bb23
1312b72abc9a
148ad505c27
1550cd07273
hex30489b98b

12961036683 has 12 divisors (see below), whose sum is σ = 21395997168. Its totient is φ = 7406306640.

The previous prime is 12961036663. The next prime is 12961036747. The reversal of 12961036683 is 38663016921.

12961036683 is a `hidden beast` number, since 1 + 29 + 610 + 3 + 6 + 6 + 8 + 3 = 666.

It is not a de Polignac number, because 12961036683 - 226 = 12893927819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12961036643) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102865308 + ... + 102865433.

It is an arithmetic number, because the mean of its divisors is an integer number (1782999764).

Almost surely, 212961036683 is an apocalyptic number.

12961036683 is a deficient number, since it is larger than the sum of its proper divisors (8434960485).

12961036683 is a wasteful number, since it uses less digits than its factorization.

12961036683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205730754 (or 205730751 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The spelling of 12961036683 in words is "twelve billion, nine hundred sixty-one million, thirty-six thousand, six hundred eighty-three".

Divisors: 1 3 7 9 21 63 205730741 617192223 1440115187 1851576669 4320345561 12961036683