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31299194653 = 671187393557
BaseRepresentation
bin11101001001100100…
…111100111100011101
32222210021221211101121
4131021210330330131
51003100043212103
622213442210541
72155423523236
oct351144747435
988707854347
1031299194653
1112301641221
126096053a51
132c4a5aa62c
14172cbda08d
15c32c0a6bd
hex74993cf1d

31299194653 has 8 divisors (see below), whose sum is σ = 31793189472. Its totient is φ = 30805989456.

The previous prime is 31299194629. The next prime is 31299194677. The reversal of 31299194653 is 35649199213.

It is an interprime number because it is at equal distance from previous prime (31299194629) and next prime (31299194677).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31299194653 - 29 = 31299194141 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31299194653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31299194453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117250 + ... + 276307.

It is an arithmetic number, because the mean of its divisors is an integer number (3974148684).

Almost surely, 231299194653 is an apocalyptic number.

It is an amenable number.

31299194653 is a deficient number, since it is larger than the sum of its proper divisors (493994819).

31299194653 is a wasteful number, since it uses less digits than its factorization.

31299194653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394811.

The product of its digits is 1574640, while the sum is 52.

The spelling of 31299194653 in words is "thirty-one billion, two hundred ninety-nine million, one hundred ninety-four thousand, six hundred fifty-three".

Divisors: 1 67 1187 79529 393557 26368319 467152159 31299194653