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12312842 = 215140771
BaseRepresentation
bin101110111110…
…000100001010
3212011120001012
4232332010022
511123002332
61115523522
7206441333
oct56760412
925146035
1012312842
116a4a903
1241595a2
132721509
1418c728a
1511333b2
hexbbe10a

12312842 has 8 divisors (see below), whose sum is σ = 18592032. Its totient is φ = 6115500.

The previous prime is 12312829. The next prime is 12312847. The reversal of 12312842 is 24821321.

It is a happy number.

12312842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (12312847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20084 + ... + 20687.

It is an arithmetic number, because the mean of its divisors is an integer number (2324004).

Almost surely, 212312842 is an apocalyptic number.

12312842 is a deficient number, since it is larger than the sum of its proper divisors (6279190).

12312842 is a wasteful number, since it uses less digits than its factorization.

12312842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40924.

The product of its digits is 768, while the sum is 23.

The square root of 12312842 is about 3508.9659445483. The cubic root of 12312842 is about 230.9153316259.

The spelling of 12312842 in words is "twelve million, three hundred twelve thousand, eight hundred forty-two".

Divisors: 1 2 151 302 40771 81542 6156421 12312842