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1317482868 = 2231310778929
BaseRepresentation
bin100111010000111…
…0011000101110100
310101211002001201210
41032201303011310
510144233422433
6334422121420
744435263632
oct11641630564
93354061653
101317482868
11616759419
12309280270
1317cc49780
14c6d92352
157a9e5463
hex4e873174

1317482868 has 48 divisors (see below), whose sum is σ = 3341580480. Its totient is φ = 401585664.

The previous prime is 1317482863. The next prime is 1317482869. The reversal of 1317482868 is 8682847131.

It is a super-2 number, since 2×13174828682 = 3471522214947010848, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1317482863) 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, 22773 + ... + 56156.

It is an arithmetic number, because the mean of its divisors is an integer number (69616260).

Almost surely, 21317482868 is an apocalyptic number.

It is an amenable number.

1317482868 is an abundant number, since it is smaller than the sum of its proper divisors (2024097612).

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

1317482868 is a wasteful number, since it uses less digits than its factorization.

1317482868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79056 (or 79054 counting only the distinct ones).

The product of its digits is 516096, while the sum is 48.

The square root of 1317482868 is about 36297.1468300196. The cubic root of 1317482868 is about 1096.2635949804.

The spelling of 1317482868 in words is "one billion, three hundred seventeen million, four hundred eighty-two thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 107 156 214 321 428 642 1284 1391 2782 4173 5564 8346 16692 78929 157858 236787 315716 473574 947148 1026077 2052154 3078231 4104308 6156462 8445403 12312924 16890806 25336209 33781612 50672418 101344836 109790239 219580478 329370717 439160956 658741434 1317482868