Search a number
-
+
25189233 = 38396411
BaseRepresentation
bin110000000010…
…1101101110001
31202101202010120
41200011231301
522422023413
62255520453
7424050666
oct140055561
952352116
1025189233
1113245053
128529129
1352ac394
1434b9a6d
152328723
hex1805b71

25189233 has 4 divisors (see below), whose sum is σ = 33585648. Its totient is φ = 16792820.

The previous prime is 25189217. The next prime is 25189243. The reversal of 25189233 is 33298152.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25189233 - 24 = 25189217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25189194 and 25189203.

It is not an unprimeable number, because it can be changed into a prime (25189243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4198203 + ... + 4198208.

It is an arithmetic number, because the mean of its divisors is an integer number (8396412).

Almost surely, 225189233 is an apocalyptic number.

It is an amenable number.

25189233 is a deficient number, since it is larger than the sum of its proper divisors (8396415).

25189233 is an equidigital number, since it uses as much as digits as its factorization.

25189233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8396414.

The product of its digits is 12960, while the sum is 33.

The square root of 25189233 is about 5018.8876257593. The cubic root of 25189233 is about 293.1376810252.

The spelling of 25189233 in words is "twenty-five million, one hundred eighty-nine thousand, two hundred thirty-three".

Divisors: 1 3 8396411 25189233