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331012 = 22117523
BaseRepresentation
bin1010000110100000100
3121211001201
41100310010
541043022
611032244
72546023
oct1206404
9554051
10331012
11206770
1213b684
13b7886
14888ba
1568127
hex50d04

331012 has 12 divisors (see below), whose sum is σ = 632016. Its totient is φ = 150440.

The previous prime is 330997. The next prime is 331013. The reversal of 331012 is 210133.

It is a self number, because there is not a number n which added to its sum of digits gives 331012.

It is not an unprimeable number, because it can be changed into a prime (331013) 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, 3718 + ... + 3805.

It is an arithmetic number, because the mean of its divisors is an integer number (52668).

2331012 is an apocalyptic number.

It is an amenable number.

331012 is a deficient number, since it is larger than the sum of its proper divisors (301004).

331012 is a wasteful number, since it uses less digits than its factorization.

331012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7538 (or 7536 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 331012 is about 575.3364233212. The cubic root of 331012 is about 69.1748000951.

Adding to 331012 its reverse (210133), we get a palindrome (541145).

The spelling of 331012 in words is "three hundred thirty-one thousand, twelve".

Divisors: 1 2 4 11 22 44 7523 15046 30092 82753 165506 331012