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492131 = 2321397
BaseRepresentation
bin1111000001001100011
3221000002002
41320021203
5111222011
614314215
74116533
oct1701143
9830062
10492131
11306822
121b896b
13143003
14cb4c3
159ac3b
hex78263

492131 has 4 divisors (see below), whose sum is σ = 513552. Its totient is φ = 470712.

The previous prime is 492113. The next prime is 492227. The reversal of 492131 is 131294.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131294 = 265647.

It is a cyclic number.

It is not a de Polignac number, because 492131 - 26 = 492067 is a prime.

It is a super-2 number, since 2×4921312 = 484385842322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (492431) 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, 10676 + ... + 10721.

It is an arithmetic number, because the mean of its divisors is an integer number (128388).

2492131 is an apocalyptic number.

492131 is a deficient number, since it is larger than the sum of its proper divisors (21421).

492131 is a wasteful number, since it uses less digits than its factorization.

492131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21420.

The product of its digits is 216, while the sum is 20.

The square root of 492131 is about 701.5204915040. The cubic root of 492131 is about 78.9514736969.

The spelling of 492131 in words is "four hundred ninety-two thousand, one hundred thirty-one".

Divisors: 1 23 21397 492131