Base | Representation |
---|---|
bin | 110010011011100001000… |
… | …0011011101010100010101 |
3 | 220112121012221200002110212 |
4 | 1210313002003131110111 |
5 | 1402024231202403434 |
6 | 22424024101055205 |
7 | 1313515403245556 |
oct | 144670203352425 |
9 | 26477187602425 |
10 | 6931037934869 |
11 | 223248924a094 |
12 | 93b3466b7505 |
13 | 3b3795240a29 |
14 | 19d66d40432d |
15 | c045b2b48ce |
hex | 64dc20dd515 |
6931037934869 has 16 divisors (see below), whose sum is σ = 7084612563840. Its totient is φ = 6779143425600.
The previous prime is 6931037934859. The next prime is 6931037934893. The reversal of 6931037934869 is 9684397301396.
It is a cyclic number.
It is not a de Polignac number, because 6931037934869 - 224 = 6931021157653 is a prime.
It is a super-3 number, since 3×69310379348693 (a number of 39 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 6931037934799 and 6931037934808.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (6931037934859) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120074387 + ... + 120132095.
It is an arithmetic number, because the mean of its divisors is an integer number (442788285240).
Almost surely, 26931037934869 is an apocalyptic number.
It is an amenable number.
6931037934869 is a deficient number, since it is larger than the sum of its proper divisors (153574628971).
6931037934869 is a wasteful number, since it uses less digits than its factorization.
6931037934869 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 72220.
The product of its (nonzero) digits is 158723712, while the sum is 68.
The spelling of 6931037934869 in words is "six trillion, nine hundred thirty-one billion, thirty-seven million, nine hundred thirty-four thousand, eight hundred sixty-nine".
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