Base | Representation |
---|---|
bin | 111111110110110101… |
… | …111000011110010101 |
3 | 20112222110201000211121 |
4 | 333312311320132111 |
5 | 2110410323021100 |
6 | 51255415403541 |
7 | 4645060635424 |
oct | 776665703625 |
9 | 215873630747 |
10 | 68565829525 |
11 | 27095694616 |
12 | 113566835b1 |
13 | 660929387b |
14 | 346636b2bb |
15 | 1bb476b51a |
hex | ff6d78795 |
68565829525 has 12 divisors (see below), whose sum is σ = 86998877152. Its totient is φ = 53577019440.
The previous prime is 68565829487. The next prime is 68565829537. The reversal of 68565829525 is 52592856586.
It is not a de Polignac number, because 68565829525 - 221 = 68563732373 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31890009 + ... + 31892158.
Almost surely, 268565829525 is an apocalyptic number.
It is an amenable number.
68565829525 is a deficient number, since it is larger than the sum of its proper divisors (18433047627).
68565829525 is a wasteful number, since it uses less digits than its factorization.
68565829525 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 63782220 (or 63782215 counting only the distinct ones).
The product of its digits is 51840000, while the sum is 61.
The spelling of 68565829525 in words is "sixty-eight billion, five hundred sixty-five million, eight hundred twenty-nine thousand, five hundred twenty-five".
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