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1315796087 = 43137401557
BaseRepresentation
bin100111001101101…
…0111010001110111
310101200220100220102
41032123113101313
510143320433322
6334322024315
744415040124
oct11633272167
93350810812
101315796087
11615807091
123087a809b
1317c7a8a88
14c6a7374b
157a7b0792
hex4e6d7477

1315796087 has 16 divisors (see below), whose sum is σ = 1362046752. Its totient is φ = 1270348800.

The previous prime is 1315796077. The next prime is 1315796089. The reversal of 1315796087 is 7806975131.

It is a cyclic number.

It is not a de Polignac number, because 1315796087 - 228 = 1047360631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1315796089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2362013 + ... + 2362569.

It is an arithmetic number, because the mean of its divisors is an integer number (85127922).

Almost surely, 21315796087 is an apocalyptic number.

1315796087 is a deficient number, since it is larger than the sum of its proper divisors (46250665).

1315796087 is a wasteful number, since it uses less digits than its factorization.

1315796087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1138.

The product of its (nonzero) digits is 317520, while the sum is 47.

The square root of 1315796087 is about 36273.9036636533. The cubic root of 1315796087 is about 1095.7955442827.

The spelling of 1315796087 in words is "one billion, three hundred fifteen million, seven hundred ninety-six thousand, eighty-seven".

Divisors: 1 43 137 401 557 5891 17243 23951 54937 76309 223357 2362291 3281287 9604351 30599909 1315796087