Search a number
-
+
23125725 = 3252714683
BaseRepresentation
bin101100000110…
…1111011011101
31121111220112100
41120031323131
521410010400
62143355313
7400364640
oct130157335
947456470
1023125725
1112065777
1278b2b39
134a3907c
1430dda57
15206c100
hex160dedd

23125725 has 36 divisors (see below), whose sum is σ = 47341216. Its totient is φ = 10571040.

The previous prime is 23125691. The next prime is 23125733. The reversal of 23125725 is 52752132.

It is not a de Polignac number, because 23125725 - 28 = 23125469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5767 + ... + 8916.

Almost surely, 223125725 is an apocalyptic number.

23125725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23125725 is an abundant number, since it is smaller than the sum of its proper divisors (24215491).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23125725 is a wasteful number, since it uses less digits than its factorization.

23125725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14706 (or 14698 counting only the distinct ones).

The product of its digits is 4200, while the sum is 27.

The square root of 23125725 is about 4808.9213967375. The cubic root of 23125725 is about 284.9039380775.

Adding to 23125725 its reverse (52752132), we get a palindrome (75877857).

The spelling of 23125725 in words is "twenty-three million, one hundred twenty-five thousand, seven hundred twenty-five".

Divisors: 1 3 5 7 9 15 21 25 35 45 63 75 105 175 225 315 525 1575 14683 44049 73415 102781 132147 220245 308343 367075 513905 660735 925029 1101225 1541715 2569525 3303675 4625145 7708575 23125725