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10971297291 = 313149156857
BaseRepresentation
bin10100011011111000…
…01011011000001011
31001022121102122112010
422031330023120023
5134432123003131
65012400551003
7535610326323
oct121574133013
931277378463
1010971297291
114720014049
122162322463
13105acb7cb6
1476115c283
154432beb46
hex28df0b60b

10971297291 has 16 divisors (see below), whose sum is σ = 14770343808. Its totient is φ = 7243454400.

The previous prime is 10971297263. The next prime is 10971297317. The reversal of 10971297291 is 19279217901.

10971297291 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10971297291 - 27 = 10971297163 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10971297291.

It is not an unprimeable number, because it can be changed into a prime (10971297251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164535 + ... + 221391.

It is an arithmetic number, because the mean of its divisors is an integer number (923146488).

Almost surely, 210971297291 is an apocalyptic number.

10971297291 is a deficient number, since it is larger than the sum of its proper divisors (3799046517).

10971297291 is a wasteful number, since it uses less digits than its factorization.

10971297291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57482.

The product of its (nonzero) digits is 142884, while the sum is 48.

The spelling of 10971297291 in words is "ten billion, nine hundred seventy-one million, two hundred ninety-seven thousand, two hundred ninety-one".

Divisors: 1 3 131 393 491 1473 56857 64321 170571 192963 7448267 22344801 27916787 83750361 3657099097 10971297291