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115530857 = 1317475087
BaseRepresentation
bin1101110001011…
…01110001101001
322001101120112122
412320231301221
5214033441412
615244121025
72601665441
oct670556151
9261346478
10115530857
115a23a052
1232836175
131ac20970
14114b5121
15a221572
hex6e2dc69

115530857 has 8 divisors (see below), whose sum is σ = 124513536. Its totient is φ = 106561872.

The previous prime is 115530853. The next prime is 115530901. The reversal of 115530857 is 758035511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 115530857 - 22 = 115530853 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115530851) 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, 20168 + ... + 25254.

It is an arithmetic number, because the mean of its divisors is an integer number (15564192).

Almost surely, 2115530857 is an apocalyptic number.

It is an amenable number.

115530857 is a deficient number, since it is larger than the sum of its proper divisors (8982679).

115530857 is a wasteful number, since it uses less digits than its factorization.

115530857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6847.

The product of its (nonzero) digits is 21000, while the sum is 35.

The square root of 115530857 is about 10748.5281317955. The cubic root of 115530857 is about 487.0415336457.

The spelling of 115530857 in words is "one hundred fifteen million, five hundred thirty thousand, eight hundred fifty-seven".

Divisors: 1 13 1747 5087 22711 66131 8886989 115530857