Base | Representation |
---|---|
bin | 1111100000101… |
… | …11111000000111 |
3 | 100001211211202120 |
4 | 13300113320013 |
5 | 231302334343 |
6 | 20524541023 |
7 | 3140004111 |
oct | 760277007 |
9 | 301754676 |
10 | 130121223 |
11 | 674a5001 |
12 | 376b1773 |
13 | 20c5ba0b |
14 | 133d23b1 |
15 | b654683 |
hex | 7c17e07 |
130121223 has 8 divisors (see below), whose sum is σ = 174534528. Its totient is φ = 86227704.
The previous prime is 130121207. The next prime is 130121227. The reversal of 130121223 is 322121031.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 130121223 - 24 = 130121207 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130121227) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129361 + ... + 130362.
It is an arithmetic number, because the mean of its divisors is an integer number (21816816).
Almost surely, 2130121223 is an apocalyptic number.
130121223 is a deficient number, since it is larger than the sum of its proper divisors (44413305).
130121223 is a wasteful number, since it uses less digits than its factorization.
130121223 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 259893.
The product of its (nonzero) digits is 72, while the sum is 15.
The square root of 130121223 is about 11407.0689925151. The cubic root of 130121223 is about 506.7371122521.
Adding to 130121223 its reverse (322121031), we get a palindrome (452242254).
The spelling of 130121223 in words is "one hundred thirty million, one hundred twenty-one thousand, two hundred twenty-three".
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