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1310442792891 = 31699343374891
BaseRepresentation
bin10011000100011100011…
…110100010011110111011
311122021111000022022000020
4103010130132202132323
5132432241323333031
62442001544541523
7163450664644611
oct23043436423673
94567430268006
101310442792891
11465834880041
12191b807818a3
139676075a02b
14475d64516b1
152414aaeb096
hex1311c7a27bb

1310442792891 has 16 divisors (see below), whose sum is σ = 1748818070400. Its totient is φ = 872848342080.

The previous prime is 1310442792859. The next prime is 1310442792973. The reversal of 1310442792891 is 1982972440131.

It is not a de Polignac number, because 1310442792891 - 25 = 1310442792859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1310442792821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17460556 + ... + 17535446.

It is an arithmetic number, because the mean of its divisors is an integer number (109301129400).

Almost surely, 21310442792891 is an apocalyptic number.

1310442792891 is a deficient number, since it is larger than the sum of its proper divisors (438375277509).

1310442792891 is a wasteful number, since it uses less digits than its factorization.

1310442792891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80026.

The product of its (nonzero) digits is 870912, while the sum is 51.

The spelling of 1310442792891 in words is "one trillion, three hundred ten billion, four hundred forty-two million, seven hundred ninety-two thousand, eight hundred ninety-one".

Divisors: 1 3 1699 3433 5097 10299 74891 224673 5832667 17498001 127239809 257100803 381719427 771302409 436814264297 1310442792891