Base | Representation |
---|---|
bin | 101100000111… |
… | …0111111111001 |
3 | 1121112010112120 |
4 | 1120032333321 |
5 | 21410130410 |
6 | 2143431453 |
7 | 400413465 |
oct | 130167771 |
9 | 47463476 |
10 | 23130105 |
11 | 12068a99 |
12 | 78b5589 |
13 | 4a3b06b |
14 | 31014a5 |
15 | 206d570 |
hex | 160eff9 |
23130105 has 8 divisors (see below), whose sum is σ = 37008192. Its totient is φ = 12336048.
The previous prime is 23130089. The next prime is 23130113. The reversal of 23130105 is 50103132.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 23130105 - 24 = 23130089 is a prime.
It is a super-2 number, since 2×231301052 = 1070003514622050, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 1542007 = 23130105 / (2 + 3 + 1 + 3 + 0 + 1 + 0 + 5).
It is a Curzon number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 770989 + ... + 771018.
It is an arithmetic number, because the mean of its divisors is an integer number (4626024).
Almost surely, 223130105 is an apocalyptic number.
It is an amenable number.
23130105 is a deficient number, since it is larger than the sum of its proper divisors (13878087).
23130105 is a wasteful number, since it uses less digits than its factorization.
23130105 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1542015.
The product of its (nonzero) digits is 90, while the sum is 15.
The square root of 23130105 is about 4809.3767787521. The cubic root of 23130105 is about 284.9219238268.
Adding to 23130105 its reverse (50103132), we get a palindrome (73233237).
The spelling of 23130105 in words is "twenty-three million, one hundred thirty thousand, one hundred five".
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