Base | Representation |
---|---|
bin | 101101001110… |
… | …0000101001100 |
3 | 1122121111020100 |
4 | 1122130011030 |
5 | 22032123410 |
6 | 2204051100 |
7 | 405341322 |
oct | 132340514 |
9 | 48544210 |
10 | 23707980 |
11 | 1242317a |
12 | 7b33a90 |
13 | 4bb10ba |
14 | 3211d12 |
15 | 21348c0 |
hex | 169c14c |
23707980 has 36 divisors (see below), whose sum is σ = 71914752. Its totient is φ = 6322080.
The previous prime is 23707973. The next prime is 23707997. The reversal of 23707980 is 8970732.
It is a tau number, because it is divible by the number of its divisors (36).
It is a Harshad number since it is a multiple of its sum of digits (36).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65676 + ... + 66035.
It is an arithmetic number, because the mean of its divisors is an integer number (1997632).
Almost surely, 223707980 is an apocalyptic number.
23707980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
23707980 is an abundant number, since it is smaller than the sum of its proper divisors (48206772).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23707980 is a wasteful number, since it uses less digits than its factorization.
23707980 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 131726 (or 131721 counting only the distinct ones).
The product of its (nonzero) digits is 21168, while the sum is 36.
The square root of 23707980 is about 4869.0841027857. The cubic root of 23707980 is about 287.2752320093.
The spelling of 23707980 in words is "twenty-three million, seven hundred seven thousand, nine hundred eighty".
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