Base | Representation |
---|---|
bin | 10010101010011111… |
… | …10000110110110111 |
3 | 221212022122100121111 |
4 | 21111033300312313 |
5 | 131010123131411 |
6 | 4334142055451 |
7 | 503210462446 |
oct | 112517606667 |
9 | 27768570544 |
10 | 10020130231 |
11 | 4282114171 |
12 | 1b3787a587 |
13 | c38c17c57 |
14 | 6b0ac2d5d |
15 | 3d9a37721 |
hex | 2553f0db7 |
10020130231 has 2 divisors, whose sum is σ = 10020130232. Its totient is φ = 10020130230.
The previous prime is 10020130229. The next prime is 10020130243. The reversal of 10020130231 is 13203102001.
It is a weak prime.
It is an emirp because it is prime and its reverse (13203102001) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 10020130231 - 21 = 10020130229 is a prime.
It is a super-2 number, since 2×100201302312 (a number of 21 digits) contains 22 as substring.
Together with 10020130229, it forms a pair of twin primes.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (10020110231) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5010065115 + 5010065116.
It is an arithmetic number, because the mean of its divisors is an integer number (5010065116).
Almost surely, 210020130231 is an apocalyptic number.
10020130231 is a deficient number, since it is larger than the sum of its proper divisors (1).
10020130231 is an equidigital number, since it uses as much as digits as its factorization.
10020130231 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 36, while the sum is 13.
Adding to 10020130231 its reverse (13203102001), we get a palindrome (23223232232).
The spelling of 10020130231 in words is "ten billion, twenty million, one hundred thirty thousand, two hundred thirty-one".
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