Search a number
-
+
23668225 = 52721392
BaseRepresentation
bin101101001001…
…0011000000001
31122112110200221
41122102120001
522024340400
62203143041
7405114400
oct132223001
948473627
1023668225
11123a6319
127b14a81
134b98c89
143201637
152127c1a
hex1692601

23668225 has 27 divisors (see below), whose sum is σ = 34387587. Its totient is φ = 16112880.

The previous prime is 23668217. The next prime is 23668231. The reversal of 23668225 is 52286632.

The square root of 23668225 is 4865.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 8520561 + 15147664 = 2919^2 + 3892^2 .

It is not a de Polignac number, because 23668225 - 23 = 23668217 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 170206 + ... + 170344.

Almost surely, 223668225 is an apocalyptic number.

23668225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

23668225 is the 4865-th square number.

23668225 is the 2433-rd centered octagonal number.

It is an amenable number.

23668225 is a deficient number, since it is larger than the sum of its proper divisors (10719362).

23668225 is an equidigital number, since it uses as much as digits as its factorization.

23668225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302 (or 151 counting only the distinct ones).

The product of its digits is 34560, while the sum is 34.

The cubic root of 23668225 is about 287.1145685757.

The spelling of 23668225 in words is "twenty-three million, six hundred sixty-eight thousand, two hundred twenty-five".

Divisors: 1 5 7 25 35 49 139 175 245 695 973 1225 3475 4865 6811 19321 24325 34055 96605 135247 170275 483025 676235 946729 3381175 4733645 23668225