Base | Representation |
---|---|
bin | 11011100000011… |
… | …01001100000100 |
3 | 121002011211210100 |
4 | 31300031030010 |
5 | 433032200430 |
6 | 34521324100 |
7 | 5501156346 |
oct | 1560151404 |
9 | 532154710 |
10 | 230740740 |
11 | 109279a2a |
12 | 65336630 |
13 | 38a5b4a9 |
14 | 22905296 |
15 | 153cc960 |
hex | dc0d304 |
230740740 has 72 divisors (see below), whose sum is σ = 711809280. Its totient is φ = 60485184.
The previous prime is 230740739. The next prime is 230740753. The reversal of 230740740 is 47047032.
It is a super-3 number, since 3×2307407403 (a number of 26 digits) contains 333 as substring.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 244 + ... + 21483.
It is an arithmetic number, because the mean of its divisors is an integer number (9886240).
Almost surely, 2230740740 is an apocalyptic number.
230740740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 230740740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (355904640).
230740740 is an abundant number, since it is smaller than the sum of its proper divisors (481068540).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
230740740 is a wasteful number, since it uses less digits than its factorization.
230740740 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 21801 (or 21796 counting only the distinct ones).
The product of its (nonzero) digits is 4704, while the sum is 27.
The square root of 230740740 is about 15190.1527312927. The cubic root of 230740740 is about 613.3496103378.
Adding to 230740740 its reverse (47047032), we get a palindrome (277787772).
The spelling of 230740740 in words is "two hundred thirty million, seven hundred forty thousand, seven hundred forty".
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