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13287902740 = 225794913591
BaseRepresentation
bin11000110000000010…
…10100111000010100
31021022001112101202221
430120001110320110
5204203200341430
610034313512124
7650200211140
oct143001247024
937261471687
1013287902740
1156a9747002
1226aa112644
131339c25458
14900ab0220
1552b87157a
hex318054e14

13287902740 has 24 divisors (see below), whose sum is σ = 31890966912. Its totient is φ = 4555852320.

The previous prime is 13287902717. The next prime is 13287902813. The reversal of 13287902740 is 4720978231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47456656 + ... + 47456935.

It is an arithmetic number, because the mean of its divisors is an integer number (1328790288).

Almost surely, 213287902740 is an apocalyptic number.

13287902740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13287902740 is an abundant number, since it is smaller than the sum of its proper divisors (18603064172).

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

13287902740 is a wasteful number, since it uses less digits than its factorization.

13287902740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94913607 (or 94913605 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 43.

The spelling of 13287902740 in words is "thirteen billion, two hundred eighty-seven million, nine hundred two thousand, seven hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 94913591 189827182 379654364 474567955 664395137 949135910 1328790274 1898271820 2657580548 3321975685 6643951370 13287902740