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113444231 = 1917334513
BaseRepresentation
bin1101100001100…
…00010110000111
321220110120020012
412300300112013
5213020203411
615131300435
72545155125
oct660602607
9256416205
10113444231
115904436a
1231baa71b
131a66cc84
14110d0915
159e5d18b
hex6c30587

113444231 has 8 divisors (see below), whose sum is σ = 120108720. Its totient is φ = 106849152.

The previous prime is 113444209. The next prime is 113444239. The reversal of 113444231 is 132444311.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-113444231 is a prime.

It is a super-2 number, since 2×1134442312 = 25739187094362722, 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 = 113444197 and 113444206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113444239) 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, 13970 + ... + 20543.

It is an arithmetic number, because the mean of its divisors is an integer number (15013590).

Almost surely, 2113444231 is an apocalyptic number.

113444231 is a deficient number, since it is larger than the sum of its proper divisors (6664489).

113444231 is a wasteful number, since it uses less digits than its factorization.

113444231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34705.

The product of its digits is 1152, while the sum is 23.

The square root of 113444231 is about 10651.0201858789. The cubic root of 113444231 is about 484.0915164583.

Adding to 113444231 its reverse (132444311), we get a palindrome (245888542).

The spelling of 113444231 in words is "one hundred thirteen million, four hundred forty-four thousand, two hundred thirty-one".

Divisors: 1 19 173 3287 34513 655747 5970749 113444231