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13253415380 = 225662670769
BaseRepresentation
bin11000101011111011…
…10001000111010100
31021012122122021000022
430111331301013110
5204120333243010
610031042404312
7646301112662
oct142575610724
937178567008
1013253415380
115691231157
12269a660698
131332a3bb2a
148da293c32
1552880cd55
hex315f711d4

13253415380 has 12 divisors (see below), whose sum is σ = 27832172340. Its totient is φ = 5301366144.

The previous prime is 13253415379. The next prime is 13253415391. The reversal of 13253415380 is 8351435231.

It can be written as a sum of positive squares in 2 ways, for example, as 2064430096 + 11188985284 = 45436^2 + 105778^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13253415380.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 331335365 + ... + 331335404.

It is an arithmetic number, because the mean of its divisors is an integer number (2319347695).

Almost surely, 213253415380 is an apocalyptic number.

13253415380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13253415380 is an abundant number, since it is smaller than the sum of its proper divisors (14578756960).

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

13253415380 is a wasteful number, since it uses less digits than its factorization.

13253415380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662670778 (or 662670776 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

The spelling of 13253415380 in words is "thirteen billion, two hundred fifty-three million, four hundred fifteen thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 662670769 1325341538 2650683076 3313353845 6626707690 13253415380