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1913310113 = 111326949739
BaseRepresentation
bin111001000001010…
…1100101110100001
311221100020020001112
41302002230232201
512404301410423
6513504513105
765261603411
oct16202545641
94840206045
101913310113
118a2017230
1245491b795
13246513c80
14142170641
15b2e8ba78
hex720acba1

1913310113 has 16 divisors (see below), whose sum is σ = 2256206400. Its totient is φ = 1599574080.

The previous prime is 1913310103. The next prime is 1913310143. The reversal of 1913310113 is 3110133191.

It is a de Polignac number, because none of the positive numbers 2k-1913310113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1913310103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13598 + ... + 63336.

It is an arithmetic number, because the mean of its divisors is an integer number (141012900).

Almost surely, 21913310113 is an apocalyptic number.

1913310113 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1913310113 is a deficient number, since it is larger than the sum of its proper divisors (342896287).

1913310113 is a wasteful number, since it uses less digits than its factorization.

1913310113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50032.

The product of its (nonzero) digits is 243, while the sum is 23.

The square root of 1913310113 is about 43741.4004462591. The cubic root of 1913310113 is about 1241.4477784887.

The spelling of 1913310113 in words is "one billion, nine hundred thirteen million, three hundred ten thousand, one hundred thirteen".

Divisors: 1 11 13 143 269 2959 3497 38467 49739 547129 646607 7112677 13379791 147177701 173937283 1913310113