Base | Representation |
---|---|
bin | 101100001111… |
… | …1110010100000 |
3 | 1121122121212210 |
4 | 1120133302200 |
5 | 21414331010 |
6 | 2145122120 |
7 | 401121135 |
oct | 130376240 |
9 | 47577783 |
10 | 23198880 |
11 | 12105731 |
12 | 7929340 |
13 | 4a63463 |
14 | 311c58c |
15 | 2083b20 |
hex | 161fca0 |
23198880 has 96 divisors (see below), whose sum is σ = 77402304. Its totient is φ = 5820416.
The previous prime is 23198873. The next prime is 23198891. The reversal of 23198880 is 8889132.
It is a tau number, because it is divible by the number of its divisors (96).
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, 6739 + ... + 9581.
It is an arithmetic number, because the mean of its divisors is an integer number (806274).
Almost surely, 223198880 is an apocalyptic number.
23198880 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 23198880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38701152).
23198880 is an abundant number, since it is smaller than the sum of its proper divisors (54203424).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23198880 is a wasteful number, since it uses less digits than its factorization.
23198880 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2878 (or 2870 counting only the distinct ones).
The product of its (nonzero) digits is 27648, while the sum is 39.
The square root of 23198880 is about 4816.5215664419. The cubic root of 23198880 is about 285.2040397905.
The spelling of 23198880 in words is "twenty-three million, one hundred ninety-eight thousand, eight hundred eighty".
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