Base | Representation |
---|---|
bin | 100000000101001001… |
… | …0000111111101000101 |
3 | 20120211012110012201010 |
4 | 1000022102013331011 |
5 | 2112042323000234 |
6 | 51352030352433 |
7 | 4656131224104 |
oct | 1001222077505 |
9 | 216735405633 |
10 | 68892000069 |
11 | 27242813352 |
12 | 1142795b719 |
13 | 665ba255a9 |
14 | 34977d403b |
15 | 1bd31e96e9 |
hex | 100a487f45 |
68892000069 has 24 divisors (see below), whose sum is σ = 93588549600. Its totient is φ = 45067350240.
The previous prime is 68892000053. The next prime is 68892000071. The reversal of 68892000069 is 96000029886.
It is not a de Polignac number, because 68892000069 - 24 = 68892000053 is a prime.
It is a super-2 number, since 2×688920000692 (a number of 22 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 68891999991 and 68892000027.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68892000029) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69517164 + ... + 69518154.
It is an arithmetic number, because the mean of its divisors is an integer number (3899522900).
Almost surely, 268892000069 is an apocalyptic number.
68892000069 is the 140298-th nonagonal number.
It is an amenable number.
68892000069 is a deficient number, since it is larger than the sum of its proper divisors (24696549531).
68892000069 is an frugal number, since it uses more digits than its factorization.
68892000069 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2401 (or 1410 counting only the distinct ones).
The product of its (nonzero) digits is 373248, while the sum is 48.
The spelling of 68892000069 in words is "sixty-eight billion, eight hundred ninety-two million, sixty-nine", and thus it is an aban number.
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