Base | Representation |
---|---|
bin | 1000001000100… |
… | …10011111111111 |
3 | 11202101121101010 |
4 | 10010102133333 |
5 | 114431430330 |
6 | 10434250303 |
7 | 1455654441 |
oct | 404223777 |
9 | 152347333 |
10 | 68233215 |
11 | 35574696 |
12 | 1aa26993 |
13 | 111a05ab |
14 | 90c2491 |
15 | 5ecc3b0 |
hex | 41127ff |
68233215 has 16 divisors (see below), whose sum is σ = 109288800. Its totient is φ = 36352512.
The previous prime is 68233213. The next prime is 68233219. The reversal of 68233215 is 51233286.
It is not a de Polignac number, because 68233215 - 21 = 68233213 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68233211) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17571 + ... + 21099.
It is an arithmetic number, because the mean of its divisors is an integer number (6830550).
Almost surely, 268233215 is an apocalyptic number.
68233215 is a deficient number, since it is larger than the sum of its proper divisors (41055585).
68233215 is a wasteful number, since it uses less digits than its factorization.
68233215 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4826.
The product of its digits is 8640, while the sum is 30.
The square root of 68233215 is about 8260.3398840484. The cubic root of 68233215 is about 408.6315969747.
The spelling of 68233215 in words is "sixty-eight million, two hundred thirty-three thousand, two hundred fifteen".
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