Base | Representation |
---|---|
bin | 1111100000110… |
… | …00010011111001 |
3 | 100001211221012102 |
4 | 13300120103321 |
5 | 231302414001 |
6 | 20524553145 |
7 | 3140012231 |
oct | 760302371 |
9 | 301757172 |
10 | 130123001 |
11 | 674a6378 |
12 | 376b27b5 |
13 | 20c5c778 |
14 | 133d2cc1 |
15 | b654e6b |
hex | 7c184f9 |
130123001 has 16 divisors (see below), whose sum is σ = 140078400. Its totient is φ = 120512448.
The previous prime is 130122989. The next prime is 130123009. The reversal of 130123001 is 100321031.
It is a cyclic number.
It is not a de Polignac number, because 130123001 - 210 = 130121977 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (130123009) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171515 + ... + 172271.
It is an arithmetic number, because the mean of its divisors is an integer number (8754900).
Almost surely, 2130123001 is an apocalyptic number.
It is an amenable number.
130123001 is a deficient number, since it is larger than the sum of its proper divisors (9955399).
130123001 is a wasteful number, since it uses less digits than its factorization.
130123001 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 968.
The product of its (nonzero) digits is 18, while the sum is 11.
The square root of 130123001 is about 11407.1469263791. The cubic root of 130123001 is about 506.7394202909.
Adding to 130123001 its reverse (100321031), we get a palindrome (230444032).
The spelling of 130123001 in words is "one hundred thirty million, one hundred twenty-three thousand, one".
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