Base | Representation |
---|---|
bin | 1111100001100… |
… | …10110101001110 |
3 | 100002001110012201 |
4 | 13300302311032 |
5 | 231314403010 |
6 | 20531152114 |
7 | 3140644024 |
oct | 760626516 |
9 | 302043181 |
10 | 130231630 |
11 | 6756aa51 |
12 | 3774563a |
13 | 20c9a049 |
14 | 13420714 |
15 | b67723a |
hex | 7c32d4e |
130231630 has 16 divisors (see below), whose sum is σ = 234667440. Its totient is φ = 52036992.
The previous prime is 130231627. The next prime is 130231637. The reversal of 130231630 is 36132031.
It is a junction number, because it is equal to n+sod(n) for n = 130231598 and 130231607.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130231637) 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, 3637 + ... + 16543.
It is an arithmetic number, because the mean of its divisors is an integer number (14666715).
Almost surely, 2130231630 is an apocalyptic number.
130231630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
130231630 is a deficient number, since it is larger than the sum of its proper divisors (104435810).
130231630 is a wasteful number, since it uses less digits than its factorization.
130231630 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13923.
The product of its (nonzero) digits is 324, while the sum is 19.
The square root of 130231630 is about 11411.9073778225. The cubic root of 130231630 is about 506.8803927688.
Adding to 130231630 its reverse (36132031), we get a palindrome (166363661).
The spelling of 130231630 in words is "one hundred thirty million, two hundred thirty-one thousand, six hundred thirty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.072 sec. • engine limits •