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392420142 = 232172312653
BaseRepresentation
bin10111011000111…
…101101100101110
31000100102000020100
4113120331230232
51300424421032
6102534531530
712503342022
oct2730755456
91010360210
10392420142
11191569074
12ab506ba6
13633b948a
143a190382
15246b797c
hex1763db2e

392420142 has 24 divisors (see below), whose sum is σ = 850804344. Its totient is φ = 130720464.

The previous prime is 392420131. The next prime is 392420173. The reversal of 392420142 is 241024293.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24688 + ... + 37340.

It is an arithmetic number, because the mean of its divisors is an integer number (35450181).

Almost surely, 2392420142 is an apocalyptic number.

392420142 is an abundant number, since it is smaller than the sum of its proper divisors (458384202).

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

392420142 is a wasteful number, since it uses less digits than its factorization.

392420142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14384 (or 14381 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 392420142 is about 19809.5972195297. The cubic root of 392420142 is about 732.1225159977.

The spelling of 392420142 in words is "three hundred ninety-two million, four hundred twenty thousand, one hundred forty-two".

Divisors: 1 2 3 6 9 18 1723 3446 5169 10338 12653 15507 25306 31014 37959 75918 113877 227754 21801119 43602238 65403357 130806714 196210071 392420142