Base | Representation |
---|---|
bin | 1111100001100… |
… | …10101110101011 |
3 | 100002001102122012 |
4 | 13300302232223 |
5 | 231314344321 |
6 | 20531150135 |
7 | 3140642555 |
oct | 760625653 |
9 | 302042565 |
10 | 130231211 |
11 | 6756a700 |
12 | 3774534b |
13 | 20c99ab6 |
14 | 134204d5 |
15 | b67705b |
hex | 7c32bab |
130231211 has 12 divisors (see below), whose sum is σ = 146643672. Its totient is φ = 115500000.
The previous prime is 130231181. The next prime is 130231259. The reversal of 130231211 is 112132031.
It is not a de Polignac number, because 130231211 - 26 = 130231147 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (130231411) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8165 + ... + 18086.
It is an arithmetic number, because the mean of its divisors is an integer number (12220306).
Almost surely, 2130231211 is an apocalyptic number.
130231211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
130231211 is a deficient number, since it is larger than the sum of its proper divisors (16412461).
130231211 is a wasteful number, since it uses less digits than its factorization.
130231211 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 26314 (or 26303 counting only the distinct ones).
The product of its (nonzero) digits is 36, while the sum is 14.
The square root of 130231211 is about 11411.8890197898. The cubic root of 130231211 is about 506.8798491653.
Adding to 130231211 its reverse (112132031), we get a palindrome (242363242).
The spelling of 130231211 in words is "one hundred thirty million, two hundred thirty-one thousand, two hundred eleven".
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