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10879136257 = 11289910217
BaseRepresentation
bin10100010000111001…
…00111001000000001
31001002012000101100111
422020130213020001
5134240024330012
64555305351321
7533411063263
oct121034471001
931065011314
1010879136257
114682a97100
122137498541
131044b8a542
14752c0bb33
1543a167ba7
hex288727201

10879136257 has 6 divisors (see below), whose sum is σ = 11958058994. Its totient is φ = 9890123760.

The previous prime is 10879136239. The next prime is 10879136293. The reversal of 10879136257 is 75263197801.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6835320976 + 4043815281 = 82676^2 + 63591^2 .

It is not a de Polignac number, because 10879136257 - 231 = 8731652609 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10879136257.

It is not an unprimeable number, because it can be changed into a prime (10879136227) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 44954988 + ... + 44955229.

Almost surely, 210879136257 is an apocalyptic number.

It is an amenable number.

10879136257 is a deficient number, since it is larger than the sum of its proper divisors (1078922737).

10879136257 is an equidigital number, since it uses as much as digits as its factorization.

10879136257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89910239 (or 89910228 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 49.

The spelling of 10879136257 in words is "ten billion, eight hundred seventy-nine million, one hundred thirty-six thousand, two hundred fifty-seven".

Divisors: 1 11 121 89910217 989012387 10879136257