Base | Representation |
---|---|
bin | 101101110001… |
… | …0011001001100 |
3 | 1200011010022000 |
4 | 1123202121030 |
5 | 22120332410 |
6 | 2214152300 |
7 | 410651061 |
oct | 133423114 |
9 | 50133260 |
10 | 23995980 |
11 | 125aa598 |
12 | 8052690 |
13 | 4c82208 |
14 | 3288c68 |
15 | 218edc0 |
hex | 16e264c |
23995980 has 96 divisors (see below), whose sum is σ = 76735680. Its totient is φ = 6220800.
The previous prime is 23995859. The next prime is 23995999. The reversal of 23995980 is 8959932.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19380 + ... + 20580.
It is an arithmetic number, because the mean of its divisors is an integer number (799330).
Almost surely, 223995980 is an apocalyptic number.
23995980 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 23995980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38367840).
23995980 is an abundant number, since it is smaller than the sum of its proper divisors (52739700).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23995980 is a wasteful number, since it uses less digits than its factorization.
23995980 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1256 (or 1248 counting only the distinct ones).
The product of its (nonzero) digits is 174960, while the sum is 45.
The square root of 23995980 is about 4898.5691788521. The cubic root of 23995980 is about 288.4338080420.
The spelling of 23995980 in words is "twenty-three million, nine hundred ninety-five thousand, nine hundred eighty".
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