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23512825 = 527134359
BaseRepresentation
bin101100110110…
…0011011111001
31122020120112101
41121230123321
522004402300
62155543401
7403566340
oct131543371
948216471
1023512825
11122aa596
127a5ab61
134b4331b
1431a0b57
1520e6b6a
hex166c6f9

23512825 has 12 divisors (see below), whose sum is σ = 33321280. Its totient is φ = 16122960.

The previous prime is 23512817. The next prime is 23512829. The reversal of 23512825 is 52821532.

It is not a de Polignac number, because 23512825 - 23 = 23512817 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23512793 and 23512802.

It is not an unprimeable number, because it can be changed into a prime (23512829) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67005 + ... + 67354.

Almost surely, 223512825 is an apocalyptic number.

23512825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23512825 is a deficient number, since it is larger than the sum of its proper divisors (9808455).

23512825 is a wasteful number, since it uses less digits than its factorization.

23512825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134376 (or 134371 counting only the distinct ones).

The product of its digits is 4800, while the sum is 28.

The square root of 23512825 is about 4849.0024747364. The cubic root of 23512825 is about 286.4848127001.

The spelling of 23512825 in words is "twenty-three million, five hundred twelve thousand, eight hundred twenty-five".

Divisors: 1 5 7 25 35 175 134359 671795 940513 3358975 4702565 23512825