Base | Representation |
---|---|
bin | 1000001101000… |
… | …10110010010111 |
3 | 11210111122002000 |
4 | 10012202302113 |
5 | 120104333330 |
6 | 10455050343 |
7 | 1463665455 |
oct | 406426227 |
9 | 153448060 |
10 | 68824215 |
11 | 35938719 |
12 | 1b0709b3 |
13 | 113495b5 |
14 | 91d79d5 |
15 | 6097560 |
hex | 41a2c97 |
68824215 has 32 divisors (see below), whose sum is σ = 124968960. Its totient is φ = 35921952.
The previous prime is 68824141. The next prime is 68824229. The reversal of 68824215 is 51242886.
It is not a de Polignac number, because 68824215 - 211 = 68822167 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 68824215.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 922 + ... + 11768.
It is an arithmetic number, because the mean of its divisors is an integer number (3905280).
Almost surely, 268824215 is an apocalyptic number.
68824215 is a deficient number, since it is larger than the sum of its proper divisors (56144745).
68824215 is a wasteful number, since it uses less digits than its factorization.
68824215 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10908 (or 10902 counting only the distinct ones).
The product of its digits is 30720, while the sum is 36.
The square root of 68824215 is about 8296.0361016572. The cubic root of 68824215 is about 409.8079906007.
The spelling of 68824215 in words is "sixty-eight million, eight hundred twenty-four thousand, two hundred fifteen".
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