Search a number
-
+
23072925 = 352307639
BaseRepresentation
bin101100000000…
…1000010011101
31121102020002210
41120001002131
521401313200
62142311033
7400055001
oct130010235
947366083
1023072925
111202a037
127888479
134a1b025
1430c8701
15205b650
hex160109d

23072925 has 12 divisors (see below), whose sum is σ = 38147360. Its totient is φ = 12305520.

The previous prime is 23072909. The next prime is 23072963. The reversal of 23072925 is 52927032.

It is a happy number.

It is not a de Polignac number, because 23072925 - 24 = 23072909 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 23072892 and 23072901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 153745 + ... + 153894.

Almost surely, 223072925 is an apocalyptic number.

23072925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23072925 is a deficient number, since it is larger than the sum of its proper divisors (15074435).

23072925 is a wasteful number, since it uses less digits than its factorization.

23072925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307652 (or 307647 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 23072925 is about 4803.4284630876. The cubic root of 23072925 is about 284.6869446499.

Adding to 23072925 its reverse (52927032), we get a palindrome (75999957).

The spelling of 23072925 in words is "twenty-three million, seventy-two thousand, nine hundred twenty-five".

Divisors: 1 3 5 15 25 75 307639 922917 1538195 4614585 7690975 23072925