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1392942 = 23435399
BaseRepresentation
bin101010100000100101110
32121202202110
411110010232
5324033232
645504450
714561025
oct5240456
92552673
101392942
118715a1
12572126
1339a035
142838bc
151c7acc
hex15412e

1392942 has 16 divisors (see below), whose sum is σ = 2851200. Its totient is φ = 453432.

The previous prime is 1392901. The next prime is 1392943. The reversal of 1392942 is 2492931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1392943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2442 + ... + 2957.

It is an arithmetic number, because the mean of its divisors is an integer number (178200).

21392942 is an apocalyptic number.

1392942 is an abundant number, since it is smaller than the sum of its proper divisors (1458258).

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

1392942 is a wasteful number, since it uses less digits than its factorization.

1392942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5447.

The product of its digits is 3888, while the sum is 30.

The square root of 1392942 is about 1180.2296386721. The cubic root of 1392942 is about 111.6805843894.

It can be divided in two parts, 139 and 2942, that added together give a triangular number (3081 = T78).

The spelling of 1392942 in words is "one million, three hundred ninety-two thousand, nine hundred forty-two".

Divisors: 1 2 3 6 43 86 129 258 5399 10798 16197 32394 232157 464314 696471 1392942