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13965672747 = 313479747587
BaseRepresentation
bin11010000000110101…
…10100000100101011
31100001021212200102210
431000122310010223
5212100203011442
610225444500203
71003040155035
oct150032640453
940037780383
1013965672747
115a17292704
1228590aa663
1314174803b0
14966adcc55
1556b10219c
hex3406b412b

13965672747 has 16 divisors (see below), whose sum is σ = 20095165440. Its totient is φ = 8576306592.

The previous prime is 13965672667. The next prime is 13965672751. The reversal of 13965672747 is 74727656931.

It is not a de Polignac number, because 13965672747 - 215 = 13965639979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13965672757) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 355113 + ... + 392474.

It is an arithmetic number, because the mean of its divisors is an integer number (1255947840).

Almost surely, 213965672747 is an apocalyptic number.

13965672747 is a deficient number, since it is larger than the sum of its proper divisors (6129492693).

13965672747 is a wasteful number, since it uses less digits than its factorization.

13965672747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748082.

The product of its digits is 13335840, while the sum is 57.

The spelling of 13965672747 in words is "thirteen billion, nine hundred sixty-five million, six hundred seventy-two thousand, seven hundred forty-seven".

Divisors: 1 3 13 39 479 1437 6227 18681 747587 2242761 9718631 29155893 358094173 1074282519 4655224249 13965672747