Search a number
-
+
23043872 = 254316747
BaseRepresentation
bin101011111100…
…1111100100000
31121100202020202
41113321330200
521344400442
62141524332
7366604205
oct127717440
947322222
1023043872
111200a225
1278736a8
134a0aa37
1430bbcac
152052c32
hex15f9f20

23043872 has 24 divisors (see below), whose sum is σ = 46425456. Its totient is φ = 11253312.

The previous prime is 23043869. The next prime is 23043877. The reversal of 23043872 is 27834032.

It is not an unprimeable number, because it can be changed into a prime (23043877) 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, 6998 + ... + 9749.

It is an arithmetic number, because the mean of its divisors is an integer number (1934394).

Almost surely, 223043872 is an apocalyptic number.

It is an amenable number.

23043872 is an abundant number, since it is smaller than the sum of its proper divisors (23381584).

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

23043872 is a wasteful number, since it uses less digits than its factorization.

23043872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16800 (or 16792 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 23043872 is about 4800.4033163892. The cubic root of 23043872 is about 284.5674036178.

The spelling of 23043872 in words is "twenty-three million, forty-three thousand, eight hundred seventy-two".

Divisors: 1 2 4 8 16 32 43 86 172 344 688 1376 16747 33494 66988 133976 267952 535904 720121 1440242 2880484 5760968 11521936 23043872