Base | Representation |
---|---|
bin | 100000001100010010… |
… | …0000110100010000001 |
3 | 20121102220021211121010 |
4 | 1000120210012202001 |
5 | 2113040142000412 |
6 | 51431505551133 |
7 | 4665100565214 |
oct | 1003044064201 |
9 | 217386254533 |
10 | 69131593857 |
11 | 27355a89747 |
12 | 114940454a9 |
13 | 6699563571 |
14 | 34bb56177b |
15 | 1be927533c |
hex | 1018906881 |
69131593857 has 8 divisors (see below), whose sum is σ = 92508222976. Its totient is φ = 45921346992.
The previous prime is 69131593847. The next prime is 69131593871. The reversal of 69131593857 is 75839513196.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 69131593857 - 230 = 68057852033 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 69131593797 and 69131593806.
It is not an unprimeable number, because it can be changed into a prime (69131593847) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41594593 + ... + 41596254.
It is an arithmetic number, because the mean of its divisors is an integer number (11563527872).
Almost surely, 269131593857 is an apocalyptic number.
It is an amenable number.
69131593857 is a deficient number, since it is larger than the sum of its proper divisors (23376629119).
69131593857 is a wasteful number, since it uses less digits than its factorization.
69131593857 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 83191127.
The product of its digits is 6123600, while the sum is 57.
The spelling of 69131593857 in words is "sixty-nine billion, one hundred thirty-one million, five hundred ninety-three thousand, eight hundred fifty-seven".
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