Base | Representation |
---|---|
bin | 1010101000110… |
… | …00110000110011 |
3 | 20012220101002011 |
4 | 11110120300303 |
5 | 140320333022 |
6 | 12504303351 |
7 | 2132305621 |
oct | 524306063 |
9 | 205811064 |
10 | 89230387 |
11 | 46406124 |
12 | 25a71b57 |
13 | 1564285c |
14 | bbca511 |
15 | 7c78977 |
hex | 5518c33 |
89230387 has 4 divisors (see below), whose sum is σ = 89322696. Its totient is φ = 89138080.
The previous prime is 89230367. The next prime is 89230447. The reversal of 89230387 is 78303298.
It is a happy number.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 89230387 - 223 = 80841779 is a prime.
It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is an alternating number because its digits alternate between even and odd.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (89230357) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44689 + ... + 46642.
It is an arithmetic number, because the mean of its divisors is an integer number (22330674).
Almost surely, 289230387 is an apocalyptic number.
89230387 is a deficient number, since it is larger than the sum of its proper divisors (92309).
89230387 is an equidigital number, since it uses as much as digits as its factorization.
89230387 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 92308.
The product of its (nonzero) digits is 72576, while the sum is 40.
The square root of 89230387 is about 9446.1837267756. The cubic root of 89230387 is about 446.8594282608.
The spelling of 89230387 in words is "eighty-nine million, two hundred thirty thousand, three hundred eighty-seven".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.069 sec. • engine limits •