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1317831474 = 231072052697
BaseRepresentation
bin100111010001100…
…1000001100110010
310101211201202221010
41032203020030302
510144331101344
6334433411350
744441245161
oct11643101462
93354652833
101317831474
11616977323
12309409b56
1318003c34b
14c70433d8
157aa638b9
hex4e8c8332

1317831474 has 16 divisors (see below), whose sum is σ = 2660296608. Its totient is φ = 435171552.

The previous prime is 1317831443. The next prime is 1317831481. The reversal of 1317831474 is 4741387131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1025707 + ... + 1026990.

It is an arithmetic number, because the mean of its divisors is an integer number (166268538).

Almost surely, 21317831474 is an apocalyptic number.

1317831474 is an abundant number, since it is smaller than the sum of its proper divisors (1342465134).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1317831474 is a wasteful number, since it uses less digits than its factorization.

1317831474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2052809.

The product of its digits is 56448, while the sum is 39.

The square root of 1317831474 is about 36301.9486253837. The cubic root of 1317831474 is about 1096.3602769118.

The spelling of 1317831474 in words is "one billion, three hundred seventeen million, eight hundred thirty-one thousand, four hundred seventy-four".

Divisors: 1 2 3 6 107 214 321 642 2052697 4105394 6158091 12316182 219638579 439277158 658915737 1317831474