Base | Representation |
---|---|
bin | 111111100110111110… |
… | …011111111100011100 |
3 | 20112021220211212010210 |
4 | 333212332133330130 |
5 | 2104334202343032 |
6 | 51213150332420 |
7 | 4635346320312 |
oct | 774676377434 |
9 | 215256755123 |
10 | 68299652892 |
11 | 26a69412129 |
12 | 112a14ba110 |
13 | 65960a90c3 |
14 | 343cc800b2 |
15 | 1b9b1de2cc |
hex | fe6f9ff1c |
68299652892 has 12 divisors (see below), whose sum is σ = 159365856776. Its totient is φ = 22766550960.
The previous prime is 68299652867. The next prime is 68299652893. The reversal of 68299652892 is 29825699286.
It is a tau number, because it is divible by the number of its divisors (12).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68299652893) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2845818859 + ... + 2845818882.
Almost surely, 268299652892 is an apocalyptic number.
It is an amenable number.
68299652892 is an abundant number, since it is smaller than the sum of its proper divisors (91066203884).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68299652892 is a wasteful number, since it uses less digits than its factorization.
68299652892 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5691637748 (or 5691637746 counting only the distinct ones).
The product of its digits is 67184640, while the sum is 66.
The spelling of 68299652892 in words is "sixty-eight billion, two hundred ninety-nine million, six hundred fifty-two thousand, eight hundred ninety-two".
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