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231104112 = 2436178929
BaseRepresentation
bin11011100011001…
…01111001110000
3121002212022020120
431301211321300
5433130312422
634533210240
75504231631
oct1561457160
9532768216
10231104112
111094a7a38
1265490980
1338b579c5
142299b888
151545045c
hexdc65e70

231104112 has 40 divisors (see below), whose sum is σ = 606813840. Its totient is φ = 75770880.

The previous prime is 231104047. The next prime is 231104113. The reversal of 231104112 is 211401132.

It is a super-2 number, since 2×2311041122 = 106818221166617088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231104091 and 231104100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231104113) 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, 36537 + ... + 42392.

It is an arithmetic number, because the mean of its divisors is an integer number (15170346).

Almost surely, 2231104112 is an apocalyptic number.

It is an amenable number.

231104112 is an abundant number, since it is smaller than the sum of its proper divisors (375709728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231104112 is a wasteful number, since it uses less digits than its factorization.

231104112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79001 (or 78995 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 231104112 is about 15202.1088010841. The cubic root of 231104112 is about 613.6714104418.

Adding to 231104112 its reverse (211401132), we get a palindrome (442505244).

The spelling of 231104112 in words is "two hundred thirty-one million, one hundred four thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 12 16 24 48 61 122 183 244 366 488 732 976 1464 2928 78929 157858 236787 315716 473574 631432 947148 1262864 1894296 3788592 4814669 9629338 14444007 19258676 28888014 38517352 57776028 77034704 115552056 231104112