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23901265 = 534913697
BaseRepresentation
bin101101100101…
…1010001010001
31122222022101001
41123023101101
522104320030
62212142001
7410104663
oct133132121
948868331
1023901265
1112545413
128007901
134c4b07b
143262533
152171cca
hex16cb451

23901265 has 8 divisors (see below), whose sum is σ = 28765800. Its totient is φ = 19064832.

The previous prime is 23901263. The next prime is 23901287. The reversal of 23901265 is 56210932.

It can be written as a sum of positive squares in 4 ways, for example, as 398161 + 23503104 = 631^2 + 4848^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 23901265 - 21 = 23901263 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23901263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5104 + ... + 8593.

It is an arithmetic number, because the mean of its divisors is an integer number (3595725).

Almost surely, 223901265 is an apocalyptic number.

It is an amenable number.

23901265 is a deficient number, since it is larger than the sum of its proper divisors (4864535).

23901265 is a wasteful number, since it uses less digits than its factorization.

23901265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14051.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 23901265 is about 4888.8920012616. The cubic root of 23901265 is about 288.0538134074.

It can be divided in two parts, 2390 and 1265, that added together give a triangular number (3655 = T85).

The spelling of 23901265 in words is "twenty-three million, nine hundred one thousand, two hundred sixty-five".

Divisors: 1 5 349 1745 13697 68485 4780253 23901265