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390252 = 223171913
BaseRepresentation
bin1011111010001101100
3201211022210
41133101230
544442002
612210420
73213522
oct1372154
9654283
10390252
11247225
12169a10
13108825
14a2312
157a96c
hex5f46c

390252 has 24 divisors (see below), whose sum is σ = 964656. Its totient is φ = 122368.

The previous prime is 390223. The next prime is 390263. The reversal of 390252 is 252093.

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, 753 + ... + 1160.

It is an arithmetic number, because the mean of its divisors is an integer number (40194).

2390252 is an apocalyptic number.

It is an amenable number.

390252 is an abundant number, since it is smaller than the sum of its proper divisors (574404).

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

390252 is a wasteful number, since it uses less digits than its factorization.

390252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1937 (or 1935 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 390252 is about 624.7015287319. The cubic root of 390252 is about 73.0771686617.

The spelling of 390252 in words is "three hundred ninety thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 204 1913 3826 5739 7652 11478 22956 32521 65042 97563 130084 195126 390252