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23097880 = 23513431033
BaseRepresentation
bin101100000011…
…1001000011000
31121110111100001
41120013020120
521403113010
62143022344
7400220521
oct130071030
947414301
1023097880
1112046863
12789a9b4
134a294b0
1430d3848
152063c3a
hex1607218

23097880 has 64 divisors (see below), whose sum is σ = 57324960. Its totient is φ = 8322048.

The previous prime is 23097869. The next prime is 23097881. The reversal of 23097880 is 8879032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23097881) 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, 21844 + ... + 22876.

Almost surely, 223097880 is an apocalyptic number.

23097880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23097880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28662480).

23097880 is an abundant number, since it is smaller than the sum of its proper divisors (34227080).

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

23097880 is a wasteful number, since it uses less digits than its factorization.

23097880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100 (or 1096 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 23097880 is about 4806.0253848685. The cubic root of 23097880 is about 284.7895440234.

The spelling of 23097880 in words is "twenty-three million, ninety-seven thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 13 20 26 40 43 52 65 86 104 130 172 215 260 344 430 520 559 860 1033 1118 1720 2066 2236 2795 4132 4472 5165 5590 8264 10330 11180 13429 20660 22360 26858 41320 44419 53716 67145 88838 107432 134290 177676 222095 268580 355352 444190 537160 577447 888380 1154894 1776760 2309788 2887235 4619576 5774470 11548940 23097880