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23013256 = 2371943503
BaseRepresentation
bin101011111001…
…0011110001000
31121022012020211
41113302132020
521342411011
62141130504
7366416020
oct127623610
947265224
1023013256
1111a99222
127859a34
1349c9b16
1430b0a80
152048b21
hex15f2788

23013256 has 64 divisors (see below), whose sum is σ = 53222400. Its totient is φ = 9108288.

The previous prime is 23013251. The next prime is 23013281. The reversal of 23013256 is 65231032.

It is not an unprimeable number, because it can be changed into a prime (23013251) 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 15 ways as a sum of consecutive naturals, for example, 45501 + ... + 46003.

It is an arithmetic number, because the mean of its divisors is an integer number (831600).

Almost surely, 223013256 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 23013256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26611200).

23013256 is an abundant number, since it is smaller than the sum of its proper divisors (30209144).

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

23013256 is a wasteful number, since it uses less digits than its factorization.

23013256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578 (or 574 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 23013256 is about 4797.2133577734. The cubic root of 23013256 is about 284.4413227106.

Adding to 23013256 its reverse (65231032), we get a palindrome (88244288).

The spelling of 23013256 in words is "twenty-three million, thirteen thousand, two hundred fifty-six".

Divisors: 1 2 4 7 8 14 19 28 38 43 56 76 86 133 152 172 266 301 344 503 532 602 817 1006 1064 1204 1634 2012 2408 3268 3521 4024 5719 6536 7042 9557 11438 14084 19114 21629 22876 28168 38228 43258 45752 66899 76456 86516 133798 151403 173032 267596 302806 410951 535192 605612 821902 1211224 1643804 2876657 3287608 5753314 11506628 23013256