Base | Representation |
---|---|
bin | 1000001100100… |
… | …00010100010101 |
3 | 11210100210022011 |
4 | 10012100110111 |
5 | 120044423230 |
6 | 10453304221 |
7 | 1463232064 |
oct | 406202425 |
9 | 153323264 |
10 | 68748565 |
11 | 358968a6 |
12 | 1b035071 |
13 | 11321032 |
14 | 91b81db |
15 | 607ee2a |
hex | 4190515 |
68748565 has 8 divisors (see below), whose sum is σ = 83543040. Its totient is φ = 54302352.
The previous prime is 68748551. The next prime is 68748571. The reversal of 68748565 is 56584786.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 68748565 - 27 = 68748437 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86629 + ... + 87418.
It is an arithmetic number, because the mean of its divisors is an integer number (10442880).
Almost surely, 268748565 is an apocalyptic number.
It is an amenable number.
68748565 is a deficient number, since it is larger than the sum of its proper divisors (14794475).
68748565 is a wasteful number, since it uses less digits than its factorization.
68748565 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 174131.
The product of its digits is 1612800, while the sum is 49.
The square root of 68748565 is about 8291.4754416811. The cubic root of 68748565 is about 409.6577850356.
The spelling of 68748565 in words is "sixty-eight million, seven hundred forty-eight thousand, five hundred sixty-five".
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