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230980 = 22511549
BaseRepresentation
bin111000011001000100
3102201211211
4320121010
524342410
64541204
71651261
oct703104
9381754
10230980
111485a2
12b1804
1381199
1460268
154868a
hex38644

230980 has 12 divisors (see below), whose sum is σ = 485100. Its totient is φ = 92384.

The previous prime is 230977. The next prime is 230999. The reversal of 230980 is 89032.

It can be written as a sum of positive squares in 2 ways, for example, as 166464 + 64516 = 408^2 + 254^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5755 + ... + 5794.

It is an arithmetic number, because the mean of its divisors is an integer number (40425).

2230980 is an apocalyptic number.

230980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

230980 is an abundant number, since it is smaller than the sum of its proper divisors (254120).

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

230980 is a wasteful number, since it uses less digits than its factorization.

230980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11558 (or 11556 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 230980 is about 480.6037869181. The cubic root of 230980 is about 61.3561535540.

The spelling of 230980 in words is "two hundred thirty thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 11549 23098 46196 57745 115490 230980