Search a number
-
+
23755530 = 235791851
BaseRepresentation
bin101101010011…
…1101100001010
31122200220110110
41122213230022
522040134110
62205055150
7405630051
oct132475412
948626413
1023755530
1112455977
127b574b6
134bc9936
143225398
152143a20
hex16a7b0a

23755530 has 16 divisors (see below), whose sum is σ = 57013344. Its totient is φ = 6334800.

The previous prime is 23755507. The next prime is 23755531. The reversal of 23755530 is 3555732.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 791851 = 23755530 / (2 + 3 + 7 + 5 + 5 + 5 + 3 + 0).

It is not an unprimeable number, because it can be changed into a prime (23755531) by changing a digit.

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, 395896 + ... + 395955.

It is an arithmetic number, because the mean of its divisors is an integer number (3563334).

Almost surely, 223755530 is an apocalyptic number.

23755530 is an abundant number, since it is smaller than the sum of its proper divisors (33257814).

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

23755530 is a wasteful number, since it uses less digits than its factorization.

23755530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791861.

The product of its (nonzero) digits is 15750, while the sum is 30.

The square root of 23755530 is about 4873.9645054104. The cubic root of 23755530 is about 287.4671619709.

The spelling of 23755530 in words is "twenty-three million, seven hundred fifty-five thousand, five hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 791851 1583702 2375553 3959255 4751106 7918510 11877765 23755530