Base | Representation |
---|---|
bin | 110110101100… |
… | …0000010110110 |
3 | 1222221200211200 |
4 | 1231120002312 |
5 | 24320002212 |
6 | 2502313330 |
7 | 465465240 |
oct | 155300266 |
9 | 58850750 |
10 | 28672182 |
11 | 15203920 |
12 | 9728846 |
13 | 5c2b7b6 |
14 | 3b45090 |
15 | 27b56dc |
hex | 1b580b6 |
28672182 has 96 divisors (see below), whose sum is σ = 78534144. Its totient is φ = 7344000.
The previous prime is 28672177. The next prime is 28672199. The reversal of 28672182 is 28127682.
It is a happy number.
It is a super-2 number, since 2×286721822 = 1644188041282248, which contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 189807 + ... + 189957.
It is an arithmetic number, because the mean of its divisors is an integer number (818064).
Almost surely, 228672182 is an apocalyptic number.
28672182 is a gapful number since it is divisible by the number (22) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 28672182, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39267072).
28672182 is an abundant number, since it is smaller than the sum of its proper divisors (49861962).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28672182 is a wasteful number, since it uses less digits than its factorization.
28672182 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 314 (or 311 counting only the distinct ones).
The product of its digits is 21504, while the sum is 36.
The square root of 28672182 is about 5354.6411644479. The cubic root of 28672182 is about 306.0696368491.
It can be divided in two parts, 28 and 672182, that multiplied together give a cube (18821096 = 2663).
The spelling of 28672182 in words is "twenty-eight million, six hundred seventy-two thousand, one hundred eighty-two".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.079 sec. • engine limits •