Search a number
-
+
23082489 = 34284969
BaseRepresentation
bin101100000001…
…1010111111001
31121102201020000
41120003113321
521402114424
62142423213
7400124613
oct130032771
947381200
1023082489
1112036241
127891b09
134a224a1
1430cbdb3
15205e3c9
hex16035f9

23082489 has 10 divisors (see below), whose sum is σ = 34481370. Its totient is φ = 15388272.

The previous prime is 23082469. The next prime is 23082491. The reversal of 23082489 is 98428032.

It can be written as a sum of positive squares in only one way, i.e., 20250000 + 2832489 = 4500^2 + 1683^2 .

It is not a de Polignac number, because 23082489 - 28 = 23082233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23082419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 142404 + ... + 142565.

It is an arithmetic number, because the mean of its divisors is an integer number (3448137).

Almost surely, 223082489 is an apocalyptic number.

It is an amenable number.

23082489 is a deficient number, since it is larger than the sum of its proper divisors (11398881).

23082489 is an equidigital number, since it uses as much as digits as its factorization.

23082489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284981 (or 284972 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 23082489 is about 4804.4238988665. The cubic root of 23082489 is about 284.7262745834.

The spelling of 23082489 in words is "twenty-three million, eighty-two thousand, four hundred eighty-nine".

Divisors: 1 3 9 27 81 284969 854907 2564721 7694163 23082489