Base | Representation |
---|---|
bin | 101011111000… |
… | …0011101001101 |
3 | 1121021202221020 |
4 | 1113300131031 |
5 | 21342130010 |
6 | 2141024353 |
7 | 366352662 |
oct | 127603515 |
9 | 47252836 |
10 | 23005005 |
11 | 11a93001 |
12 | 78550b9 |
13 | 49c613a |
14 | 30aba69 |
15 | 2046470 |
hex | 15f074d |
23005005 has 24 divisors (see below), whose sum is σ = 37419552. Its totient is φ = 12068352.
The previous prime is 23004979. The next prime is 23005013. The reversal of 23005005 is 50050032.
It is not a de Polignac number, because 23005005 - 25 = 23004973 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a Curzon number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 141054 + ... + 141216.
It is an arithmetic number, because the mean of its divisors is an integer number (1559148).
Almost surely, 223005005 is an apocalyptic number.
It is an amenable number.
23005005 is a deficient number, since it is larger than the sum of its proper divisors (14414547).
23005005 is an equidigital number, since it uses as much as digits as its factorization.
23005005 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 365 (or 268 counting only the distinct ones).
The product of its (nonzero) digits is 150, while the sum is 15.
The square root of 23005005 is about 4796.3533022495. The cubic root of 23005005 is about 284.4073248285.
Adding to 23005005 its reverse (50050032), we get a palindrome (73055037).
The spelling of 23005005 in words is "twenty-three million, five thousand, five".
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