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10804964985 = 3251731387921
BaseRepresentation
bin10100001000000011…
…01010111001111001
31000220000110002111100
422010001222321321
5134112032334420
64544055522013
7531520454433
oct120401527171
930800402440
1010804964985
114645137131
122116689309
1310326bb209
14747021653
154338b6190
hex28406ae79

10804964985 has 24 divisors (see below), whose sum is σ = 18836877384. Its totient is φ = 5729333760.

The previous prime is 10804964969. The next prime is 10804965089. The reversal of 10804964985 is 58946940801.

10804964985 is a `hidden beast` number, since 108 + 0 + 49 + 6 + 498 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 5386385664 + 5418579321 = 73392^2 + 73611^2 .

It is not a de Polignac number, because 10804964985 - 24 = 10804964969 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 686176 + ... + 701745.

It is an arithmetic number, because the mean of its divisors is an integer number (784869891).

Almost surely, 210804964985 is an apocalyptic number.

10804964985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10804964985 is a deficient number, since it is larger than the sum of its proper divisors (8031912399).

10804964985 is a wasteful number, since it uses less digits than its factorization.

10804964985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1388105 (or 1388102 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 54.

The spelling of 10804964985 in words is "ten billion, eight hundred four million, nine hundred sixty-four thousand, nine hundred eighty-five".

Divisors: 1 3 5 9 15 45 173 519 865 1557 2595 7785 1387921 4163763 6939605 12491289 20818815 62456445 240110333 720330999 1200551665 2160992997 3601654995 10804964985