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1313371218 = 23218895203
BaseRepresentation
bin100111001001000…
…0111010001010010
310101112100011121110
41032102013101102
510142210334333
6334154034150
744355320415
oct11622072122
93345304543
101313371218
11614400265
12307a18956
1317c13a143
14c6601b7c
157a482063
hex4e487452

1313371218 has 8 divisors (see below), whose sum is σ = 2626742448. Its totient is φ = 437790404.

The previous prime is 1313371207. The next prime is 1313371229. The reversal of 1313371218 is 8121733131.

It is an interprime number because it is at equal distance from previous prime (1313371207) and next prime (1313371229).

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

1313371218 is an admirable number.

It is an unprimeable number.

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, 109447596 + ... + 109447607.

It is an arithmetic number, because the mean of its divisors is an integer number (328342806).

Almost surely, 21313371218 is an apocalyptic number.

1313371218 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1313371218 is a wasteful number, since it uses less digits than its factorization.

1313371218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218895208.

The product of its digits is 3024, while the sum is 30.

The square root of 1313371218 is about 36240.4638215352. The cubic root of 1313371218 is about 1095.1219863681.

The spelling of 1313371218 in words is "one billion, three hundred thirteen million, three hundred seventy-one thousand, two hundred eighteen".

Divisors: 1 2 3 6 218895203 437790406 656685609 1313371218