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23130888 = 23311412137
BaseRepresentation
bin101100000111…
…1001100001000
31121112011121120
41120033030020
521410142023
62143435240
7400415664
oct130171410
947464546
1023130888
1112069640
1278b5b20
134a3b521
1431018a4
15206d8e3
hex160f308

23130888 has 64 divisors (see below), whose sum is σ = 64653120. Its totient is φ = 6835200.

The previous prime is 23130881. The next prime is 23130889. The reversal of 23130888 is 88803132.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23130881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9756 + ... + 11892.

It is an arithmetic number, because the mean of its divisors is an integer number (1010205).

Almost surely, 223130888 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 23130888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32326560).

23130888 is an abundant number, since it is smaller than the sum of its proper divisors (41522232).

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

23130888 is a wasteful number, since it uses less digits than its factorization.

23130888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2198 (or 2194 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 23130888 is about 4809.4581815419. The cubic root of 23130888 is about 284.9251388482.

The spelling of 23130888 in words is "twenty-three million, one hundred thirty thousand, eight hundred eighty-eight".

Divisors: 1 2 3 4 6 8 11 12 22 24 33 41 44 66 82 88 123 132 164 246 264 328 451 492 902 984 1353 1804 2137 2706 3608 4274 5412 6411 8548 10824 12822 17096 23507 25644 47014 51288 70521 87617 94028 141042 175234 188056 262851 282084 350468 525702 564168 700936 963787 1051404 1927574 2102808 2891361 3855148 5782722 7710296 11565444 23130888