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10247702131 = 29353369039
BaseRepresentation
bin10011000101100111…
…11000011001110011
3222110011212012120101
421202303320121303
5131441402432011
64412511453231
7511643013412
oct114263703163
928404765511
1010247702131
114389619317
121b9bb27217
13c74106c94
146d3001479
153ee9db2c1
hex262cf8673

10247702131 has 4 divisors (see below), whose sum is σ = 10601071200. Its totient is φ = 9894333064.

The previous prime is 10247702107. The next prime is 10247702149. The reversal of 10247702131 is 13120774201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10247702131 - 25 = 10247702099 is a prime.

It is a super-2 number, since 2×102477021312 (a number of 21 digits) contains 22 as substring.

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 10247702131.

It is not an unprimeable number, because it can be changed into a prime (10247702191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176684491 + ... + 176684548.

It is an arithmetic number, because the mean of its divisors is an integer number (2650267800).

Almost surely, 210247702131 is an apocalyptic number.

10247702131 is a deficient number, since it is larger than the sum of its proper divisors (353369069).

10247702131 is an equidigital number, since it uses as much as digits as its factorization.

10247702131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353369068.

The product of its (nonzero) digits is 2352, while the sum is 28.

The spelling of 10247702131 in words is "ten billion, two hundred forty-seven million, seven hundred two thousand, one hundred thirty-one".

Divisors: 1 29 353369039 10247702131