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1913132442 = 2313127719207
BaseRepresentation
bin111001000001000…
…0001010110011010
311221022220012100010
41302002001112122
512404230214232
6513501022350
765260233414
oct16202012632
94838805303
101913132442
118a1a057a1
124548549b6
13246481140
141421259b4
15b2e540cc
hex7208159a

1913132442 has 32 divisors (see below), whose sum is σ = 4124034432. Its totient is φ = 588164544.

The previous prime is 1913132413. The next prime is 1913132453. The reversal of 1913132442 is 2442313191.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90003 + ... + 109209.

It is an arithmetic number, because the mean of its divisors is an integer number (128876076).

Almost surely, 21913132442 is an apocalyptic number.

1913132442 is an abundant number, since it is smaller than the sum of its proper divisors (2210901990).

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

1913132442 is a wasteful number, since it uses less digits than its factorization.

1913132442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20502.

The product of its digits is 5184, while the sum is 30.

The square root of 1913132442 is about 43739.3694741934. The cubic root of 1913132442 is about 1241.4093501310.

The spelling of 1913132442 in words is "one billion, nine hundred thirteen million, one hundred thirty-two thousand, four hundred forty-two".

Divisors: 1 2 3 6 13 26 39 78 1277 2554 3831 7662 16601 19207 33202 38414 49803 57621 99606 115242 249691 499382 749073 1498146 24527339 49054678 73582017 147164034 318855407 637710814 956566221 1913132442