Search a number
-
+
25120233 = 33930379
BaseRepresentation
bin101111111010…
…0110111101001
31202021020111000
41133310313221
522412321413
62254225213
7423342555
oct137646751
952236430
1025120233
11131a8226
1284b5209
135286b58
14349c865
152313073
hex17f4de9

25120233 has 8 divisors (see below), whose sum is σ = 37215200. Its totient is φ = 16746804.

The previous prime is 25120229. The next prime is 25120241. The reversal of 25120233 is 33202152.

It is not a de Polignac number, because 25120233 - 22 = 25120229 is a prime.

It is a super-2 number, since 2×251202332 = 1262052211948578, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25120273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 465163 + ... + 465216.

It is an arithmetic number, because the mean of its divisors is an integer number (4651900).

Almost surely, 225120233 is an apocalyptic number.

It is an amenable number.

25120233 is a deficient number, since it is larger than the sum of its proper divisors (12094967).

25120233 is an equidigital number, since it uses as much as digits as its factorization.

25120233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 930388 (or 930382 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 25120233 is about 5012.0088786833. The cubic root of 25120233 is about 292.8697755974.

Adding to 25120233 its reverse (33202152), we get a palindrome (58322385).

The spelling of 25120233 in words is "twenty-five million, one hundred twenty thousand, two hundred thirty-three".

Divisors: 1 3 9 27 930379 2791137 8373411 25120233