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392130 = 23254357
BaseRepresentation
bin1011111101111000010
3201220220100
41133233002
5100022010
612223230
73222144
oct1375702
9656810
10392130
11248682
1216ab16
1310963b
14a2c94
157b2c0
hex5fbc2

392130 has 24 divisors (see below), whose sum is σ = 1019772. Its totient is φ = 104544.

The previous prime is 392113. The next prime is 392131. The reversal of 392130 is 31293.

It can be written as a sum of positive squares in 2 ways, for example, as 356409 + 35721 = 597^2 + 189^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (392131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2089 + ... + 2268.

2392130 is an apocalyptic number.

392130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

392130 is an abundant number, since it is smaller than the sum of its proper divisors (627642).

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

392130 is a wasteful number, since it uses less digits than its factorization.

392130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4370 (or 4367 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 392130 is about 626.2028425359. The cubic root of 392130 is about 73.1942036080.

The spelling of 392130 in words is "three hundred ninety-two thousand, one hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 4357 8714 13071 21785 26142 39213 43570 65355 78426 130710 196065 392130