Base | Representation |
---|---|
bin | 101101010000… |
… | …1101001111010 |
3 | 1122122122112220 |
4 | 1122201221322 |
5 | 22033341220 |
6 | 2204344510 |
7 | 405465015 |
oct | 132415172 |
9 | 48578486 |
10 | 23730810 |
11 | 12439344 |
12 | 7b45136 |
13 | 4bbb5cc |
14 | 321a37c |
15 | 213b540 |
hex | 16a1a7a |
23730810 has 128 divisors (see below), whose sum is σ = 66355200. Its totient is φ = 5391360.
The previous prime is 23730809. The next prime is 23730821. The reversal of 23730810 is 1803732.
It is a super-2 number, since 2×237308102 = 1126302686512200, which contains 22 as substring.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 300351 + ... + 300429.
It is an arithmetic number, because the mean of its divisors is an integer number (518400).
Almost surely, 223730810 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 23730810, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33177600).
23730810 is an abundant number, since it is smaller than the sum of its proper divisors (42624390).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23730810 is a wasteful number, since it uses less digits than its factorization.
23730810 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 156.
The product of its (nonzero) digits is 1008, while the sum is 24.
The square root of 23730810 is about 4871.4279220779. The cubic root of 23730810 is about 287.3674146058.
The spelling of 23730810 in words is "twenty-three million, seven hundred thirty thousand, eight hundred ten".
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