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117731514 = 2389220471
BaseRepresentation
bin1110000010001…
…11000010111010
322012112101021110
413001013002322
5220114402024
615403221150
72626462365
oct701070272
9265471243
10117731514
116050247a
12335177b6
131b511524
14118c90dc
15a508629
hex70470ba

117731514 has 16 divisors (see below), whose sum is σ = 238109760. Its totient is φ = 38802720.

The previous prime is 117731513. The next prime is 117731527. The reversal of 117731514 is 415137711.

It is not an unprimeable number, because it can be changed into a prime (117731513) 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, 109702 + ... + 110769.

It is an arithmetic number, because the mean of its divisors is an integer number (14881860).

Almost surely, 2117731514 is an apocalyptic number.

117731514 is an abundant number, since it is smaller than the sum of its proper divisors (120378246).

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

117731514 is a wasteful number, since it uses less digits than its factorization.

117731514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220565.

The product of its digits is 2940, while the sum is 30.

The square root of 117731514 is about 10850.4153837537. The cubic root of 117731514 is about 490.1145282756.

The spelling of 117731514 in words is "one hundred seventeen million, seven hundred thirty-one thousand, five hundred fourteen".

Divisors: 1 2 3 6 89 178 267 534 220471 440942 661413 1322826 19621919 39243838 58865757 117731514