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1313086810 = 257216372
BaseRepresentation
bin100111001000100…
…0001110101011010
310101111210201110211
41032101001311122
510142122234220
6334144001334
744353024300
oct11621016532
93344721424
101313086810
11614226612
1230790024a
1317c06a859
14c656a270
157a427b5a
hex4e441d5a

1313086810 has 36 divisors (see below), whose sum is σ = 2751123582. Its totient is φ = 449926176.

The previous prime is 1313086807. The next prime is 1313086823. The reversal of 1313086810 is 186803131.

It can be written as a sum of positive squares in 3 ways, for example, as 298218361 + 1014868449 = 17269^2 + 31857^2 .

It is a super-2 number, since 2×13130868102 = 3448393941191952200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 801312 + ... + 802948.

Almost surely, 21313086810 is an apocalyptic number.

1313086810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1313086810 is an abundant number, since it is smaller than the sum of its proper divisors (1438036772).

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

1313086810 is an frugal number, since it uses more digits than its factorization.

1313086810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3295 (or 1651 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 1313086810 is about 36236.5397078695. The cubic root of 1313086810 is about 1095.0429318113.

Adding to 1313086810 its reverse (186803131), we get a palindrome (1499889941).

The spelling of 1313086810 in words is "one billion, three hundred thirteen million, eighty-six thousand, eight hundred ten".

Divisors: 1 2 5 7 10 14 35 49 70 98 245 490 1637 3274 8185 11459 16370 22918 57295 80213 114590 160426 401065 802130 2679769 5359538 13398845 18758383 26797690 37516766 93791915 131308681 187583830 262617362 656543405 1313086810