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1312914379 = 7267399913
BaseRepresentation
bin100111001000001…
…0111101111001011
310101111110221221111
41032100113233023
510142101230004
6334140151151
744351405500
oct11620275713
93344427844
101312914379
11614119007
123078384b7
1317c00a21a
14c65234a7
157a3e1a04
hex4e417bcb

1312914379 has 12 divisors (see below), whose sum is σ = 1550066664. Its totient is φ = 1108556064.

The previous prime is 1312914377. The next prime is 1312914389. The reversal of 1312914379 is 9734192131.

It is not a de Polignac number, because 1312914379 - 21 = 1312914377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1312914371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 196674 + ... + 203239.

It is an arithmetic number, because the mean of its divisors is an integer number (129172222).

Almost surely, 21312914379 is an apocalyptic number.

1312914379 is a deficient number, since it is larger than the sum of its proper divisors (237152285).

1312914379 is an equidigital number, since it uses as much as digits as its factorization.

1312914379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399994 (or 399987 counting only the distinct ones).

The product of its digits is 40824, while the sum is 40.

The square root of 1312914379 is about 36234.1603876784. The cubic root of 1312914379 is about 1094.9949970234.

The spelling of 1312914379 in words is "one billion, three hundred twelve million, nine hundred fourteen thousand, three hundred seventy-nine".

Divisors: 1 7 49 67 469 3283 399913 2799391 19595737 26794171 187559197 1312914379