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1315375317 = 32893316361
BaseRepresentation
bin100111001100111…
…0000100011010101
310101200002222201100
41032121300203111
510143214002232
6334305020313
744411335314
oct11631604325
93350088640
101315375317
11615549a43
12308624699
1317c68c3b9
14c69a427b
157a72ac7c
hex4e6708d5

1315375317 has 12 divisors (see below), whose sum is σ = 1900315404. Its totient is φ = 876765120.

The previous prime is 1315375309. The next prime is 1315375319. The reversal of 1315375317 is 7135735131.

It can be written as a sum of positive squares in 2 ways, for example, as 415915236 + 899460081 = 20394^2 + 29991^2 .

It is not a de Polignac number, because 1315375317 - 23 = 1315375309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1315375319) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72217 + ... + 88577.

It is an arithmetic number, because the mean of its divisors is an integer number (158359617).

Almost surely, 21315375317 is an apocalyptic number.

It is an amenable number.

1315375317 is a deficient number, since it is larger than the sum of its proper divisors (584940087).

1315375317 is a wasteful number, since it uses less digits than its factorization.

1315375317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25300 (or 25297 counting only the distinct ones).

The product of its digits is 33075, while the sum is 36.

The square root of 1315375317 is about 36268.1033002830. The cubic root of 1315375317 is about 1095.6787260176.

The spelling of 1315375317 in words is "one billion, three hundred fifteen million, three hundred seventy-five thousand, three hundred seventeen".

Divisors: 1 3 9 8933 16361 26799 49083 80397 147249 146152813 438458439 1315375317