Base | Representation |
---|---|
bin | 1000100101011… |
… | …00001000100101 |
3 | 12000111101201110 |
4 | 10102230020211 |
5 | 121413230404 |
6 | 11051215233 |
7 | 1533026346 |
oct | 422541045 |
9 | 160441643 |
10 | 72008229 |
11 | 37712937 |
12 | 20147519 |
13 | 11bc2927 |
14 | 97c60cd |
15 | 64c5b89 |
hex | 44ac225 |
72008229 has 8 divisors (see below), whose sum is σ = 96586560. Its totient is φ = 47717696.
The previous prime is 72008221. The next prime is 72008329. The reversal of 72008229 is 92280027.
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 72008229 - 23 = 72008221 is a prime.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 72008196 and 72008205.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (72008221) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71364 + ... + 72365.
It is an arithmetic number, because the mean of its divisors is an integer number (12073320).
Almost surely, 272008229 is an apocalyptic number.
It is an amenable number.
72008229 is a deficient number, since it is larger than the sum of its proper divisors (24578331).
72008229 is a wasteful number, since it uses less digits than its factorization.
72008229 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 143899.
The product of its (nonzero) digits is 4032, while the sum is 30.
The square root of 72008229 is about 8485.7662588596. The cubic root of 72008229 is about 416.0326130897.
The spelling of 72008229 in words is "seventy-two million, eight thousand, two hundred twenty-nine".
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