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1313464657 = 23178731957
BaseRepresentation
bin100111001001001…
…1110000101010001
310101112111220210011
41032102132011101
510142221332112
6334200034521
744356160011
oct11622360521
93345456704
101313464657
1161446448a
12307a62a41
1317c17082b
14c6627c41
157a49eaa7
hex4e49e151

1313464657 has 8 divisors (see below), whose sum is σ = 1371381696. Its totient is φ = 1255615152.

The previous prime is 1313464631. The next prime is 1313464721. The reversal of 1313464657 is 7564643131.

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-1313464657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1313464057) 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, 25123 + ... + 57079.

It is an arithmetic number, because the mean of its divisors is an integer number (171422712).

Almost surely, 21313464657 is an apocalyptic number.

It is an amenable number.

1313464657 is a deficient number, since it is larger than the sum of its proper divisors (57917039).

1313464657 is a wasteful number, since it uses less digits than its factorization.

1313464657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33767.

The product of its digits is 181440, while the sum is 40.

The square root of 1313464657 is about 36241.7529515337. The cubic root of 1313464657 is about 1095.1479563491.

The spelling of 1313464657 in words is "one billion, three hundred thirteen million, four hundred sixty-four thousand, six hundred fifty-seven".

Divisors: 1 23 1787 31957 41101 735011 57107159 1313464657