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23690925 = 3252711483
BaseRepresentation
bin101101001011…
…1111010101101
31122120121211200
41122113322231
522031102200
62203440113
7405240516
oct132277255
948517750
1023690925
1112411385
127b26039
134ba63cb
143209a0d
15212e800
hex1697ead

23690925 has 36 divisors (see below), whose sum is σ = 43059744. Its totient is φ = 12448800.

The previous prime is 23690923. The next prime is 23690959. The reversal of 23690925 is 52909632.

It is not a de Polignac number, because 23690925 - 21 = 23690923 is a prime.

It is a super-2 number, since 2×236909252 = 1122519854711250, which contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 23690925.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23690921) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 15234 + ... + 16716.

It is an arithmetic number, because the mean of its divisors is an integer number (1196104).

Almost surely, 223690925 is an apocalyptic number.

23690925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23690925 is a deficient number, since it is larger than the sum of its proper divisors (19368819).

23690925 is a wasteful number, since it uses less digits than its factorization.

23690925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1570 (or 1562 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 23690925 is about 4867.3324316303. The cubic root of 23690925 is about 287.2063289871.

The spelling of 23690925 in words is "twenty-three million, six hundred ninety thousand, nine hundred twenty-five".

Divisors: 1 3 5 9 15 25 45 71 75 213 225 355 639 1065 1483 1775 3195 4449 5325 7415 13347 15975 22245 37075 66735 105293 111225 315879 333675 526465 947637 1579395 2632325 4738185 7896975 23690925