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130892 = 2243761
BaseRepresentation
bin11111111101001100
320122112212
4133331030
513142032
62445552
71053416
oct377514
9218485
10130892
118a383
12638b8
1347768
14359b6
1528bb2
hex1ff4c

130892 has 12 divisors (see below), whose sum is σ = 234696. Its totient is φ = 63840.

The previous prime is 130873. The next prime is 130927. The reversal of 130892 is 298031.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209 + ... + 552.

It is an arithmetic number, because the mean of its divisors is an integer number (19558).

130892 is a Friedman number, since it can be written as ((3+1)^8-90)*2, using all its digits and the basic arithmetic operations.

2130892 is an apocalyptic number.

It is an amenable number.

130892 is a deficient number, since it is larger than the sum of its proper divisors (103804).

130892 is a wasteful number, since it uses less digits than its factorization.

130892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808 (or 806 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 130892 is about 361.7899943337. The cubic root of 130892 is about 50.7735700654.

The spelling of 130892 in words is "one hundred thirty thousand, eight hundred ninety-two".

Divisors: 1 2 4 43 86 172 761 1522 3044 32723 65446 130892