| Base | Representation |
|---|---|
| bin | 11011011101101… |
| … | …11010110011010 |
| 3 | 121001111222111100 |
| 4 | 31232313112122 |
| 5 | 432434423041 |
| 6 | 34510012230 |
| 7 | 5465163321 |
| oct | 1556672632 |
| 9 | 531458440 |
| 10 | 230389146 |
| 11 | 109059859 |
| 12 | 651a7076 |
| 13 | 38967450 |
| 14 | 228530b8 |
| 15 | 1535d6b6 |
| hex | dbb759a |
230389146 has 48 divisors (see below), whose sum is σ = 542394216. Its totient is φ = 70253568.
The previous prime is 230389109. The next prime is 230389147. The reversal of 230389146 is 641983032.
230389146 is a `hidden beast` number, since 230 + 389 + 1 + 46 = 666.
It can be written as a sum of positive squares in 4 ways, for example, as 155376225 + 75012921 = 12465^2 + 8661^2 .
It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 230389146.
It is not an unprimeable number, because it can be changed into a prime (230389147) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22086 + ... + 30798.
Almost surely, 2230389146 is an apocalyptic number.
230389146 is a gapful number since it is divisible by the number (26) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 230389146, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271197108).
230389146 is an abundant number, since it is smaller than the sum of its proper divisors (312005070).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
230389146 is a wasteful number, since it uses less digits than its factorization.
230389146 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8847 (or 8844 counting only the distinct ones).
The product of its (nonzero) digits is 31104, while the sum is 36.
The square root of 230389146 is about 15178.5752295794. The cubic root of 230389146 is about 613.0379190014.
It can be divided in two parts, 230 and 389146, that added together give a square (389376 = 6242).
The spelling of 230389146 in words is "two hundred thirty million, three hundred eighty-nine thousand, one hundred forty-six".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.076 sec. • engine limits •