Base | Representation |
---|---|
bin | 1000101011111… |
… | …10000101101110 |
3 | 12002010002101110 |
4 | 10111332011232 |
5 | 122123240311 |
6 | 11121452450 |
7 | 1543240515 |
oct | 425760556 |
9 | 162102343 |
10 | 72868206 |
11 | 3814aa64 |
12 | 204a1126 |
13 | 121341a8 |
14 | 996b67c |
15 | 65e58a6 |
hex | 457e16e |
72868206 has 8 divisors (see below), whose sum is σ = 145736424. Its totient is φ = 24289400.
The previous prime is 72868199. The next prime is 72868231. The reversal of 72868206 is 60286827.
It is a sphenic number, since it is the product of 3 distinct primes.
72868206 is an admirable number.
It is a Curzon number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6072345 + ... + 6072356.
It is an arithmetic number, because the mean of its divisors is an integer number (18217053).
Almost surely, 272868206 is an apocalyptic number.
72868206 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
72868206 is a wasteful number, since it uses less digits than its factorization.
72868206 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12144706.
The product of its (nonzero) digits is 64512, while the sum is 39.
The square root of 72868206 is about 8536.2876005908. The cubic root of 72868206 is about 417.6822558751.
The spelling of 72868206 in words is "seventy-two million, eight hundred sixty-eight thousand, two hundred six".
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