Search a number
-
+
23258872 = 2371343743
BaseRepresentation
bin101100010111…
…0011011111000
31121202200011201
41120232123320
521423240442
62150303544
7401461060
oct130563370
947680151
1023258872
111214680a
127957bb4
134a84860
1431363a0
1520967b7
hex162e6f8

23258872 has 64 divisors (see below), whose sum is σ = 54996480. Its totient is φ = 8975232.

The previous prime is 23258867. The next prime is 23258887. The reversal of 23258872 is 27885232.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30933 + ... + 31675.

It is an arithmetic number, because the mean of its divisors is an integer number (859320).

Almost surely, 223258872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23258872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27498240).

23258872 is an abundant number, since it is smaller than the sum of its proper divisors (31737608).

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

23258872 is a wasteful number, since it uses less digits than its factorization.

23258872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812 (or 808 counting only the distinct ones).

The product of its digits is 53760, while the sum is 37.

The square root of 23258872 is about 4822.7452762923. The cubic root of 23258872 is about 285.4496728152.

The spelling of 23258872 in words is "twenty-three million, two hundred fifty-eight thousand, eight hundred seventy-two".

Divisors: 1 2 4 7 8 13 14 26 28 43 52 56 86 91 104 172 182 301 344 364 559 602 728 743 1118 1204 1486 2236 2408 2972 3913 4472 5201 5944 7826 9659 10402 15652 19318 20804 31304 31949 38636 41608 63898 67613 77272 127796 135226 223643 255592 270452 415337 447286 540904 830674 894572 1661348 1789144 2907359 3322696 5814718 11629436 23258872