Base | Representation |
---|---|
bin | 11100001010101101… |
… | …000000001000111000 |
3 | 2220001210001200020010 |
4 | 130022231000020320 |
5 | 443420022342110 |
6 | 21521041101520 |
7 | 2120324436120 |
oct | 341255001070 |
9 | 86053050203 |
10 | 30244340280 |
11 | 11910161550 |
12 | 5a409278a0 |
13 | 2b0cba564b |
14 | 166ca8dc80 |
15 | bc02e1020 |
hex | 70ab40238 |
30244340280 has 512 divisors, whose sum is σ = 123659550720. Its totient is φ = 5723136000.
The previous prime is 30244340227. The next prime is 30244340299. The reversal of 30244340280 is 8204344203.
It is a Cunningham number, because it is equal to 1739092-1.
It is a Harshad number since it is a multiple of its sum of digits (30).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4866375 + ... + 4872585.
It is an arithmetic number, because the mean of its divisors is an integer number (241522560).
Almost surely, 230244340280 is an apocalyptic number.
30244340280 is a gapful number since it is divisible by the number (30) 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 30244340280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61829775360).
30244340280 is an abundant number, since it is smaller than the sum of its proper divisors (93415210440).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30244340280 is a wasteful number, since it uses less digits than its factorization.
30244340280 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6291 (or 6287 counting only the distinct ones).
The product of its (nonzero) digits is 18432, while the sum is 30.
Adding to 30244340280 its reverse (8204344203), we get a palindrome (38448684483).
The spelling of 30244340280 in words is "thirty billion, two hundred forty-four million, three hundred forty thousand, two hundred eighty".
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