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392142 = 2365357
BaseRepresentation
bin1011111101111001110
3201220220210
41133233032
5100022032
612223250
73222162
oct1375716
9656823
10392142
11248693
1216ab26
1310964a
14a2ca2
157b2cc
hex5fbce

392142 has 8 divisors (see below), whose sum is σ = 784296. Its totient is φ = 130712.

The previous prime is 392131. The next prime is 392143. The reversal of 392142 is 241293.

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

392142 is an admirable number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 392142.

It is not an unprimeable number, because it can be changed into a prime (392143) by changing a digit.

392142 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32673 + ... + 32684.

It is an arithmetic number, because the mean of its divisors is an integer number (98037).

2392142 is an apocalyptic number.

392142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

392142 is a wasteful number, since it uses less digits than its factorization.

392142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65362.

The product of its digits is 432, while the sum is 21.

The square root of 392142 is about 626.2124240224. The cubic root of 392142 is about 73.1949502324.

It can be divided in two parts, 39 and 2142, that multiplied together give a palindrome (83538).

The spelling of 392142 in words is "three hundred ninety-two thousand, one hundred forty-two".

Divisors: 1 2 3 6 65357 130714 196071 392142