Base | Representation |
---|---|
bin | 111101000011011000… |
… | …1000000000101011111 |
3 | 110112102021121122202220 |
4 | 1322012301000011133 |
5 | 4122003130324411 |
6 | 140121530320423 |
7 | 12321012464463 |
oct | 1720661000537 |
9 | 415367548686 |
10 | 131110011231 |
11 | 50670201a91 |
12 | 214b0589113 |
13 | c495b4c204 |
14 | 64baa924a3 |
15 | 3625525b06 |
hex | 1e86c4015f |
131110011231 has 8 divisors (see below), whose sum is σ = 180452488704. Its totient is φ = 84587103960.
The previous prime is 131110011209. The next prime is 131110011281. The reversal of 131110011231 is 132110011131.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 131110011231 - 25 = 131110011199 is a prime.
It is a super-2 number, since 2×1311100112312 (a number of 23 digits) contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 131110011231.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131110011281) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 704892441 + ... + 704892626.
It is an arithmetic number, because the mean of its divisors is an integer number (22556561088).
Almost surely, 2131110011231 is an apocalyptic number.
131110011231 is a deficient number, since it is larger than the sum of its proper divisors (49342477473).
131110011231 is a wasteful number, since it uses less digits than its factorization.
131110011231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1409785101.
The product of its (nonzero) digits is 18, while the sum is 15.
Adding to 131110011231 its reverse (132110011131), we get a palindrome (263220022362).
The spelling of 131110011231 in words is "one hundred thirty-one billion, one hundred ten million, eleven thousand, two hundred thirty-one".
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