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23885772 = 2231990481
BaseRepresentation
bin101101100011…
…1011111001100
31122221112010020
41123013133030
522103321042
62211542140
7410011551
oct133073714
948845106
1023885772
1112534809
127bba950
134c43cc1
14325aa28
15216c3ec
hex16c77cc

23885772 has 12 divisors (see below), whose sum is σ = 55733496. Its totient is φ = 7961920.

The previous prime is 23885747. The next prime is 23885773. The reversal of 23885772 is 27758832.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (23885773) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 995229 + ... + 995252.

It is an arithmetic number, because the mean of its divisors is an integer number (4644458).

Almost surely, 223885772 is an apocalyptic number.

It is an amenable number.

23885772 is an abundant number, since it is smaller than the sum of its proper divisors (31847724).

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

23885772 is a wasteful number, since it uses less digits than its factorization.

23885772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1990488 (or 1990486 counting only the distinct ones).

The product of its digits is 188160, while the sum is 42.

The square root of 23885772 is about 4887.3072340503. The cubic root of 23885772 is about 287.9915603237.

The spelling of 23885772 in words is "twenty-three million, eight hundred eighty-five thousand, seven hundred seventy-two".

Divisors: 1 2 3 4 6 12 1990481 3980962 5971443 7961924 11942886 23885772