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1311743358680 = 2351715712286843
BaseRepresentation
bin10011000101101001111…
…111110011011011011000
311122101211122112212212112
4103011221333303123120
5132442422244434210
62442335004331452
7163525136402606
oct23055177633330
94571748485775
101311743358680
11466341a243a7
12192284243b88
139690a0326a1
14476bb07c876
15241c4d9dd05
hex13169ff36d8

1311743358680 has 64 divisors (see below), whose sum is σ = 3144940590240. Its totient is φ = 490687322112.

The previous prime is 1311743358677. The next prime is 1311743358749. The reversal of 1311743358680 is 868533471131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6036662 + ... + 6250181.

Almost surely, 21311743358680 is an apocalyptic number.

1311743358680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1311743358680 is an abundant number, since it is smaller than the sum of its proper divisors (1833197231560).

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

1311743358680 is a wasteful number, since it uses less digits than its factorization.

1311743358680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12287028 (or 12287024 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 50.

The spelling of 1311743358680 in words is "one trillion, three hundred eleven billion, seven hundred forty-three million, three hundred fifty-eight thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 17 20 34 40 68 85 136 157 170 314 340 628 680 785 1256 1570 2669 3140 5338 6280 10676 13345 21352 26690 53380 106760 12286843 24573686 49147372 61434215 98294744 122868430 208876331 245736860 417752662 491473720 835505324 1044381655 1671010648 1929034351 2088763310 3858068702 4177526620 7716137404 8355053240 9645171755 15432274808 19290343510 32793583967 38580687020 65587167934 77161374040 131174335868 163967919835 262348671736 327935839670 655871679340 1311743358680