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31092 = 2232591
BaseRepresentation
bin111100101110100
31120122120
413211310
51443332
6355540
7156435
oct74564
946576
1031092
11213a6
1215bb0
13111c9
14b48c
15932c
hex7974

31092 has 12 divisors (see below), whose sum is σ = 72576. Its totient is φ = 10360.

The previous prime is 31091. The next prime is 31121. The reversal of 31092 is 29013.

It is a tau number, because it is divible by the number of its divisors (12).

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 31092.

It is not an unprimeable number, because it can be changed into a prime (31091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1284 + ... + 1307.

It is an arithmetic number, because the mean of its divisors is an integer number (6048).

231092 is an apocalyptic number.

It is an amenable number.

31092 is an abundant number, since it is smaller than the sum of its proper divisors (41484).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36288).

31092 is a wasteful number, since it uses less digits than its factorization.

31092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2598 (or 2596 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 31092 is about 176.3292375076. The cubic root of 31092 is about 31.4448518563. Note that the first 3 decimals are identical.

The spelling of 31092 in words is "thirty-one thousand, ninety-two".

Divisors: 1 2 3 4 6 12 2591 5182 7773 10364 15546 31092