Base | Representation |
---|---|
bin | 111101000000111111… |
… | …1110111100001010111 |
3 | 110112012201002210111100 |
4 | 1322001333313201113 |
5 | 4121322141202411 |
6 | 140105552041143 |
7 | 12316021545423 |
oct | 1720177674127 |
9 | 415181083440 |
10 | 131030022231 |
11 | 5062a039079 |
12 | 214898331b3 |
13 | c4823c3b44 |
14 | 64b01cdb83 |
15 | 361d4c5456 |
hex | 1e81ff7857 |
131030022231 has 6 divisors (see below), whose sum is σ = 189265587680. Its totient is φ = 87353348148.
The previous prime is 131030022181. The next prime is 131030022251. The reversal of 131030022231 is 132220030131.
131030022231 is a `hidden beast` number, since 1 + 310 + 300 + 2 + 22 + 31 = 666.
It is not a de Polignac number, because 131030022231 - 221 = 131027925079 is a prime.
It is a super-2 number, since 2×1310300222312 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131030022251) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7279445671 + ... + 7279445688.
Almost surely, 2131030022231 is an apocalyptic number.
131030022231 is a deficient number, since it is larger than the sum of its proper divisors (58235565449).
131030022231 is a wasteful number, since it uses less digits than its factorization.
131030022231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 14558891365 (or 14558891362 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 18.
Adding to 131030022231 its reverse (132220030131), we get a palindrome (263250052362).
The spelling of 131030022231 in words is "one hundred thirty-one billion, thirty million, twenty-two thousand, two hundred thirty-one".
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