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113699231 = 239475729
BaseRepresentation
bin1101100011011…
…10100110011111
321220221112000122
412301232212133
5213101333411
615140545155
72550266432
oct661564637
9256845018
10113699231
11591a8a08
12320b21bb
131a72c069
1411159819
159ead9db
hex6c6e99f

113699231 has 4 divisors (see below), whose sum is σ = 114175200. Its totient is φ = 113223264.

The previous prime is 113699219. The next prime is 113699237. The reversal of 113699231 is 132996311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132996311 = 718999473.

It is a cyclic number.

It is not a de Polignac number, because 113699231 - 26 = 113699167 is a prime.

It is a super-2 number, since 2×1136992312 = 25855030259982722, 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 = 113699191 and 113699200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113699237) 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, 237626 + ... + 238103.

It is an arithmetic number, because the mean of its divisors is an integer number (28543800).

Almost surely, 2113699231 is an apocalyptic number.

113699231 is a deficient number, since it is larger than the sum of its proper divisors (475969).

113699231 is an equidigital number, since it uses as much as digits as its factorization.

113699231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475968.

The product of its digits is 8748, while the sum is 35.

The square root of 113699231 is about 10662.9841507901. The cubic root of 113699231 is about 484.4539587466.

The spelling of 113699231 in words is "one hundred thirteen million, six hundred ninety-nine thousand, two hundred thirty-one".

Divisors: 1 239 475729 113699231