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12113288 = 2311179769
BaseRepresentation
bin101110001101…
…010110001000
3211210102022022
4232031112020
511100111123
61111344012
7204650465
oct56152610
924712268
1012113288
116923990
124082008
132681735
14187466c
1510e41c8
hexb8d588

12113288 has 32 divisors (see below), whose sum is σ = 24948000. Its totient is φ = 5468160.

The previous prime is 12113273. The next prime is 12113291. The reversal of 12113288 is 88231121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15368 + ... + 16136.

It is an arithmetic number, because the mean of its divisors is an integer number (779625).

Almost surely, 212113288 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12113288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12474000).

12113288 is an abundant number, since it is smaller than the sum of its proper divisors (12834712).

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

12113288 is a wasteful number, since it uses less digits than its factorization.

12113288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 965 (or 961 counting only the distinct ones).

The product of its digits is 768, while the sum is 26.

The square root of 12113288 is about 3480.4149177936. The cubic root of 12113288 is about 229.6610508332.

The spelling of 12113288 in words is "twelve million, one hundred thirteen thousand, two hundred eighty-eight".

Divisors: 1 2 4 8 11 22 44 88 179 358 716 769 1432 1538 1969 3076 3938 6152 7876 8459 15752 16918 33836 67672 137651 275302 550604 1101208 1514161 3028322 6056644 12113288