Base | Representation |
---|---|
bin | 11111011000001010101001… |
… | …00110100010101110000101 |
3 | 100001022100020110000220121200 |
4 | 33230011110212202232011 |
5 | 33020444120131000234 |
6 | 402430105531533113 |
7 | 20351043014254254 |
oct | 1754052446425605 |
9 | 301270213026550 |
10 | 69000069000069 |
11 | 1aa92846138a89 |
12 | 78a48135ba199 |
13 | 2c668a8b1980c |
14 | 130789a66079b |
15 | 7e9cb435dd99 |
hex | 3ec1549a2b85 |
69000069000069 has 48 divisors (see below), whose sum is σ = 109476203865600. Its totient is φ = 41683334492448.
The previous prime is 69000069000067. The next prime is 69000069000133. The reversal of 69000069000069 is 96000096000096.
It is not a de Polignac number, because 69000069000069 - 21 = 69000069000067 is a prime.
It is a super-2 number, since 2×690000690000692 (a number of 28 digits) contains 22 as substring.
69000069000069 is a strobogrammatic number because it is the same when read upside-down.
69000069000069 is a modest number, since divided by 69000069 gives 69 as remainder.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 69000068999988 and 69000069000033.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (69000069000067) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 206626374 + ... + 206960040.
It is an arithmetic number, because the mean of its divisors is an integer number (2280754247200).
Almost surely, 269000069000069 is an apocalyptic number.
69000069000069 is a gapful number since it is divisible by the number (69) formed by its first and last digit.
It is an amenable number.
69000069000069 is a deficient number, since it is larger than the sum of its proper divisors (40476134865531).
69000069000069 is a wasteful number, since it uses less digits than its factorization.
69000069000069 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 386294 (or 386291 counting only the distinct ones).
The product of its (nonzero) digits is 157464, while the sum is 45.
The spelling of 69000069000069 in words is "sixty-nine trillion, sixty-nine million, sixty-nine", and thus it is an aban number and an uban number.
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