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115231490 = 25111047559
BaseRepresentation
bin1101101111001…
…00101100000010
322000211100212222
412313210230002
5213444401430
615233451042
72566310603
oct667445402
9260740788
10115231490
115a055140
1232710a82
131ab4761a
1411437daa
15a1b29e5
hex6de4b02

115231490 has 16 divisors (see below), whose sum is σ = 226272960. Its totient is φ = 41902320.

The previous prime is 115231481. The next prime is 115231511. The reversal of 115231490 is 94132511.

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 7 ways as a sum of consecutive naturals, for example, 523670 + ... + 523889.

It is an arithmetic number, because the mean of its divisors is an integer number (14142060).

Almost surely, 2115231490 is an apocalyptic number.

115231490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115231490 is a deficient number, since it is larger than the sum of its proper divisors (111041470).

115231490 is a wasteful number, since it uses less digits than its factorization.

115231490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1047577.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 115231490 is about 10734.5931455272. The cubic root of 115231490 is about 486.6204909172.

The spelling of 115231490 in words is "one hundred fifteen million, two hundred thirty-one thousand, four hundred ninety".

Divisors: 1 2 5 10 11 22 55 110 1047559 2095118 5237795 10475590 11523149 23046298 57615745 115231490