Base | Representation |
---|---|
bin | 11001101101111101… |
… | …11100100110011001 |
3 | 1022122021000012120222 |
4 | 30312332330212121 |
5 | 211234141411242 |
6 | 10202031525425 |
7 | 666105505616 |
oct | 146676744631 |
9 | 38567005528 |
10 | 13807372697 |
11 | 59459a1518 |
12 | 2814089875 |
13 | 13c0736621 |
14 | 94da9350d |
15 | 55c2835d2 |
hex | 336fbc999 |
13807372697 has 2 divisors, whose sum is σ = 13807372698. Its totient is φ = 13807372696.
The previous prime is 13807372679. The next prime is 13807372739. The reversal of 13807372697 is 79627370831.
Together with previous prime (13807372679) it forms an Ormiston pair, because they use the same digits, order apart.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 12271986841 + 1535385856 = 110779^2 + 39184^2 .
It is an emirp because it is prime and its reverse (79627370831) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 13807372697 - 26 = 13807372633 is a prime.
It is a super-2 number, since 2×138073726972 (a number of 21 digits) contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (13807372597) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6903686348 + 6903686349.
It is an arithmetic number, because the mean of its divisors is an integer number (6903686349).
Almost surely, 213807372697 is an apocalyptic number.
It is an amenable number.
13807372697 is a deficient number, since it is larger than the sum of its proper divisors (1).
13807372697 is an equidigital number, since it uses as much as digits as its factorization.
13807372697 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 2667168, while the sum is 53.
The spelling of 13807372697 in words is "thirteen billion, eight hundred seven million, three hundred seventy-two thousand, six hundred ninety-seven".
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