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115053231 = 338351077
BaseRepresentation
bin1101101101110…
…01001010101111
322000111022100210
412312321022233
5213423200411
615225553503
72564636106
oct666711257
9260438323
10115053231
1159a43217
1232645893
131aab4447
14113cd03d
15a179ca6
hex6db92af

115053231 has 4 divisors (see below), whose sum is σ = 153404312. Its totient is φ = 76702152.

The previous prime is 115053221. The next prime is 115053233. The reversal of 115053231 is 132350511.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 115053231 - 26 = 115053167 is a prime.

It is a super-2 number, since 2×1150532312 = 26474491927078722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 115053198 and 115053207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115053233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19175536 + ... + 19175541.

It is an arithmetic number, because the mean of its divisors is an integer number (38351078).

Almost surely, 2115053231 is an apocalyptic number.

115053231 is a deficient number, since it is larger than the sum of its proper divisors (38351081).

115053231 is an equidigital number, since it uses as much as digits as its factorization.

115053231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38351080.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 115053231 is about 10726.2869157971. The cubic root of 115053231 is about 486.3694332396.

The spelling of 115053231 in words is "one hundred fifteen million, fifty-three thousand, two hundred thirty-one".

Divisors: 1 3 38351077 115053231