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13170756740 = 225658537837
BaseRepresentation
bin11000100010000100…
…11100110010000100
31020222220002202200012
430101002130302010
5203433203203430
610014531005352
7644245404461
oct142102346204
936886082605
1013170756740
115649604529
122676a39858
13131b88a5ab
148cd2d8668
15521431695
hex31109cc84

13170756740 has 12 divisors (see below), whose sum is σ = 27658589196. Its totient is φ = 5268302688.

The previous prime is 13170756719. The next prime is 13170756757. The reversal of 13170756740 is 4765707131.

It can be written as a sum of positive squares in 2 ways, for example, as 8869495684 + 4301261056 = 94178^2 + 65584^2 .

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, 329268899 + ... + 329268938.

It is an arithmetic number, because the mean of its divisors is an integer number (2304882433).

Almost surely, 213170756740 is an apocalyptic number.

13170756740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13170756740 is an abundant number, since it is smaller than the sum of its proper divisors (14487832456).

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

13170756740 is a wasteful number, since it uses less digits than its factorization.

13170756740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658537846 (or 658537844 counting only the distinct ones).

The product of its (nonzero) digits is 123480, while the sum is 41.

The spelling of 13170756740 in words is "thirteen billion, one hundred seventy million, seven hundred fifty-six thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 658537837 1317075674 2634151348 3292689185 6585378370 13170756740