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22930 = 252293
BaseRepresentation
bin101100110010010
31011110021
411212102
51213210
6254054
7123565
oct54622
934407
1022930
1116256
121132a
13a58b
1484dc
156bda
hex5992

22930 has 8 divisors (see below), whose sum is σ = 41292. Its totient is φ = 9168.

The previous prime is 22921. The next prime is 22937. The reversal of 22930 is 3922.

It can be written as a sum of positive squares in 2 ways, for example, as 22201 + 729 = 149^2 + 27^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (22937) by changing a digit.

22930 is an untouchable number, because it is not equal to the sum of proper divisors of any 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, 1137 + ... + 1156.

222930 is an apocalyptic number.

22930 is a deficient number, since it is larger than the sum of its proper divisors (18362).

22930 is a wasteful number, since it uses less digits than its factorization.

22930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2300.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 22930 is about 151.4265498517. The cubic root of 22930 is about 28.4097896555.

Subtracting from 22930 its product of nonzero digits (108), we obtain a palindrome (22822).

The spelling of 22930 in words is "twenty-two thousand, nine hundred thirty".

Divisors: 1 2 5 10 2293 4586 11465 22930