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23125135 = 511420457
BaseRepresentation
bin101100000110…
…1110010001111
31121111212201111
41120031302033
521410001020
62143352451
7400363135
oct130156217
947455644
1023125135
1112065290
1278b2727
134a38a17
1430dd755
15206bd5a
hex160dc8f

23125135 has 8 divisors (see below), whose sum is σ = 30272976. Its totient is φ = 16818240.

The previous prime is 23125129. The next prime is 23125169. The reversal of 23125135 is 53152132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23125135 - 23 = 23125127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210174 + ... + 210283.

It is an arithmetic number, because the mean of its divisors is an integer number (3784122).

Almost surely, 223125135 is an apocalyptic number.

23125135 is a deficient number, since it is larger than the sum of its proper divisors (7147841).

23125135 is a wasteful number, since it uses less digits than its factorization.

23125135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420473.

The product of its digits is 900, while the sum is 22.

The square root of 23125135 is about 4808.8600520290. The cubic root of 23125135 is about 284.9015151660.

Adding to 23125135 its reverse (53152132), we get a palindrome (76277267).

It can be divided in two parts, 2312 and 5135, that added together give a palindrome (7447).

The spelling of 23125135 in words is "twenty-three million, one hundred twenty-five thousand, one hundred thirty-five".

Divisors: 1 5 11 55 420457 2102285 4625027 23125135