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23953225 = 524123369
BaseRepresentation
bin101101101011…
…1111101001001
31200001221122111
41123113331021
522113000400
62213222321
7410412322
oct133277511
950057574
1023953225
111258045a
1280319a1
134c6890a
143277449
1521823ba
hex16d7f49

23953225 has 12 divisors (see below), whose sum is σ = 30427740. Its totient is φ = 18694400.

The previous prime is 23953213. The next prime is 23953247. The reversal of 23953225 is 52235932.

It can be written as a sum of positive squares in 6 ways, for example, as 8649481 + 15303744 = 2941^2 + 3912^2 .

It is a de Polignac number, because none of the positive numbers 2k-23953225 is a prime.

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, 10660 + ... + 12709.

It is an arithmetic number, because the mean of its divisors is an integer number (2535645).

Almost surely, 223953225 is an apocalyptic number.

23953225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23953225 is a deficient number, since it is larger than the sum of its proper divisors (6474515).

23953225 is a wasteful number, since it uses less digits than its factorization.

23953225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23420 (or 23415 counting only the distinct ones).

The product of its digits is 16200, while the sum is 31.

The square root of 23953225 is about 4894.2032037912. The cubic root of 23953225 is about 288.2623999017.

The spelling of 23953225 in words is "twenty-three million, nine hundred fifty-three thousand, two hundred twenty-five".

Divisors: 1 5 25 41 205 1025 23369 116845 584225 958129 4790645 23953225