Base | Representation |
---|---|
bin | 11000011101010111… |
… | …01011001100000111 |
3 | 1020220010201200221012 |
4 | 30032223223030013 |
5 | 203343043411012 |
6 | 10010555512435 |
7 | 643255426145 |
oct | 141653531407 |
9 | 36803650835 |
10 | 13131232007 |
11 | 5629268a63 |
12 | 266575871b |
13 | 131362c18a |
14 | 8c7d6a595 |
15 | 51cc25622 |
hex | 30eaeb307 |
13131232007 has 2 divisors, whose sum is σ = 13131232008. Its totient is φ = 13131232006.
The previous prime is 13131231931. The next prime is 13131232067. The reversal of 13131232007 is 70023213131.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 13131232007 - 214 = 13131215623 is a prime.
It is a super-2 number, since 2×131312320072 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (13131232067) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6565616003 + 6565616004.
It is an arithmetic number, because the mean of its divisors is an integer number (6565616004).
Almost surely, 213131232007 is an apocalyptic number.
13131232007 is a deficient number, since it is larger than the sum of its proper divisors (1).
13131232007 is an equidigital number, since it uses as much as digits as its factorization.
13131232007 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 756, while the sum is 23.
Adding to 13131232007 its reverse (70023213131), we get a palindrome (83154445138).
The spelling of 13131232007 in words is "thirteen billion, one hundred thirty-one million, two hundred thirty-two thousand, seven".
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