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1313935964 = 221129862181
BaseRepresentation
bin100111001010001…
…0001001001011100
310101120101212021222
41032110101021130
510142331422324
6334214112512
744363162045
oct11624211134
93346355258
101313935964
116147565a0
1230804b738
1317c2a7203
14c670b8cc
157a54455e
hex4e51125c

1313935964 has 12 divisors (see below), whose sum is σ = 2508423288. Its totient is φ = 597243600.

The previous prime is 1313935963. The next prime is 1313935981. The reversal of 1313935964 is 4695393131.

It is a Harshad number since it is a multiple of its sum of digits (44), and also a Moran number because the ratio is a prime number: 29862181 = 1313935964 / (1 + 3 + 1 + 3 + 9 + 3 + 5 + 9 + 6 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313935963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14931047 + ... + 14931134.

It is an arithmetic number, because the mean of its divisors is an integer number (209035274).

Almost surely, 21313935964 is an apocalyptic number.

It is an amenable number.

1313935964 is a deficient number, since it is larger than the sum of its proper divisors (1194487324).

1313935964 is a wasteful number, since it uses less digits than its factorization.

1313935964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29862196 (or 29862194 counting only the distinct ones).

The product of its digits is 262440, while the sum is 44.

The square root of 1313935964 is about 36248.2546338441. The cubic root of 1313935964 is about 1095.2789303527.

The spelling of 1313935964 in words is "one billion, three hundred thirteen million, nine hundred thirty-five thousand, nine hundred sixty-four".

Divisors: 1 2 4 11 22 44 29862181 59724362 119448724 328483991 656967982 1313935964