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1313030191 = 11592023159
BaseRepresentation
bin100111001000011…
…0100000000101111
310101111200211210211
41032100310000233
510142113431231
6334142443251
744352400234
oct11620640057
93344624724
101313030191
11614198020
12307893527
1317c04ab55
14c655378b
157a415eb1
hex4e43402f

1313030191 has 8 divisors (see below), whose sum is σ = 1456675200. Its totient is φ = 1173431640.

The previous prime is 1313030189. The next prime is 1313030197. The reversal of 1313030191 is 1910303131.

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

It is a cyclic number.

It is not a de Polignac number, because 1313030191 - 21 = 1313030189 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 (1313030197) 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 7 ways as a sum of consecutive naturals, for example, 1010931 + ... + 1012228.

It is an arithmetic number, because the mean of its divisors is an integer number (182084400).

Almost surely, 21313030191 is an apocalyptic number.

1313030191 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1313030191 is a deficient number, since it is larger than the sum of its proper divisors (143645009).

1313030191 is a wasteful number, since it uses less digits than its factorization.

1313030191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2023229.

The product of its (nonzero) digits is 243, while the sum is 22.

The square root of 1313030191 is about 36235.7584576341. The cubic root of 1313030191 is about 1095.0271925303.

The spelling of 1313030191 in words is "one billion, three hundred thirteen million, thirty thousand, one hundred ninety-one".

Divisors: 1 11 59 649 2023159 22254749 119366381 1313030191