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115393197 = 338464399
BaseRepresentation
bin1101110000011…
…00001010101101
322001010120201010
412320030022231
5214020040242
615241135433
72600553213
oct670141255
9261116633
10115393197
115a155687
123278a579
131aba30ca
141147acb3
15a1e589c
hex6e0c2ad

115393197 has 4 divisors (see below), whose sum is σ = 153857600. Its totient is φ = 76928796.

The previous prime is 115393183. The next prime is 115393259. The reversal of 115393197 is 791393511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 115393197 - 28 = 115392941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115397197) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 19232197 + ... + 19232202.

It is an arithmetic number, because the mean of its divisors is an integer number (38464400).

Almost surely, 2115393197 is an apocalyptic number.

It is an amenable number.

115393197 is a deficient number, since it is larger than the sum of its proper divisors (38464403).

115393197 is an equidigital number, since it uses as much as digits as its factorization.

115393197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38464402.

The product of its digits is 25515, while the sum is 39.

The square root of 115393197 is about 10742.1225556219. The cubic root of 115393197 is about 486.8480130967.

The spelling of 115393197 in words is "one hundred fifteen million, three hundred ninety-three thousand, one hundred ninety-seven".

Divisors: 1 3 38464399 115393197