Base | Representation |
---|---|
bin | 101011111000… |
… | …0011101001000 |
3 | 1121021202221001 |
4 | 1113300131020 |
5 | 21342130000 |
6 | 2141024344 |
7 | 366352654 |
oct | 127603510 |
9 | 47252831 |
10 | 23005000 |
11 | 11a92aa7 |
12 | 78550b4 |
13 | 49c6135 |
14 | 30aba64 |
15 | 204646a |
hex | 15f0748 |
23005000 has 80 divisors (see below), whose sum is σ = 55669680. Its totient is φ = 8904000.
The previous prime is 23004979. The next prime is 23005013. The reversal of 23005000 is 50032.
It is a Harshad number since it is a multiple of its sum of digits (10).
It is an unprimeable number.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 214947 + ... + 215053.
It is an arithmetic number, because the mean of its divisors is an integer number (695871).
Almost surely, 223005000 is an apocalyptic number.
23005000 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 23005000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27834840).
23005000 is an abundant number, since it is smaller than the sum of its proper divisors (32664680).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23005000 is a wasteful number, since it uses less digits than its factorization.
23005000 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 176 (or 157 counting only the distinct ones).
The product of its (nonzero) digits is 30, while the sum is 10.
The square root of 23005000 is about 4796.3527810202. The cubic root of 23005000 is about 284.4073042238.
Adding to 23005000 its reverse (50032), we get a palindrome (23055032).
The spelling of 23005000 in words is "twenty-three million, five thousand".
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