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1393127713 = 17130162989
BaseRepresentation
bin101001100001001…
…0111000100100001
310121002102012221201
41103002113010201
510323120041323
6350123321201
746344250555
oct12302270441
93532365851
101393127713
1165542551a
1232a680201
13192813733
14d3043865
15824888ad
hex53097121

1393127713 has 8 divisors (see below), whose sum is σ = 1476233640. Its totient is φ = 1310150400.

The previous prime is 1393127689. The next prime is 1393127719. The reversal of 1393127713 is 3177213931.

It can be written as a sum of positive squares in 4 ways, for example, as 20277009 + 1372850704 = 4503^2 + 37052^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1393127713 is a prime.

It is a super-2 number, since 2×13931277132 = 3881609649457220738, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1393127719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9378 + ... + 53611.

It is an arithmetic number, because the mean of its divisors is an integer number (184529205).

Almost surely, 21393127713 is an apocalyptic number.

It is an amenable number.

1393127713 is a deficient number, since it is larger than the sum of its proper divisors (83105927).

1393127713 is a wasteful number, since it uses less digits than its factorization.

1393127713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64307.

The product of its digits is 23814, while the sum is 37.

The square root of 1393127713 is about 37324.6260932377. The cubic root of 1393127713 is about 1116.8554741361.

The spelling of 1393127713 in words is "one billion, three hundred ninety-three million, one hundred twenty-seven thousand, seven hundred thirteen".

Divisors: 1 17 1301 22117 62989 1070813 81948689 1393127713