Base | Representation |
---|---|
bin | 1111100000101… |
… | …11111000001110 |
3 | 100001211211202211 |
4 | 13300113320032 |
5 | 231302334410 |
6 | 20524541034 |
7 | 3140004121 |
oct | 760277016 |
9 | 301754684 |
10 | 130121230 |
11 | 674a5008 |
12 | 376b177a |
13 | 20c5ba15 |
14 | 133d23b8 |
15 | b65468a |
hex | 7c17e0e |
130121230 has 64 divisors (see below), whose sum is σ = 258256512. Its totient is φ = 47001600.
The previous prime is 130121227. The next prime is 130121287. The reversal of 130121230 is 32121031.
It is a self number, because there is not a number n which added to its sum of digits gives 130121230.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 861655 + ... + 861805.
It is an arithmetic number, because the mean of its divisors is an integer number (4035258).
Almost surely, 2130121230 is an apocalyptic number.
130121230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
130121230 is a deficient number, since it is larger than the sum of its proper divisors (128135282).
130121230 is a wasteful number, since it uses less digits than its factorization.
130121230 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 349.
The product of its (nonzero) digits is 36, while the sum is 13.
The square root of 130121230 is about 11407.0692993424. The cubic root of 130121230 is about 506.7371213390.
Adding to 130121230 its reverse (32121031), we get a palindrome (162242261).
The spelling of 130121230 in words is "one hundred thirty million, one hundred twenty-one thousand, two hundred thirty".
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