Base | Representation |
---|---|
bin | 1111011011010000100… |
… | …00111101001011101100 |
3 | 1212200002201102121121222 |
4 | 13231220100331023230 |
5 | 32141000221042110 |
6 | 1043254215442512 |
7 | 53202433545620 |
oct | 7555020751354 |
9 | 1780081377558 |
10 | 530030252780 |
11 | 19486a294926 |
12 | 86882086438 |
13 | 3ac9b875c12 |
14 | 1b9216a5180 |
15 | dbc2235c55 |
hex | 7b6843d2ec |
530030252780 has 96 divisors (see below), whose sum is σ = 1288609620480. Its totient is φ = 179366353920.
The previous prime is 530030252749. The next prime is 530030252789. The reversal of 530030252780 is 87252030035.
It is a Harshad number since it is a multiple of its sum of digits (35).
It is a self number, because there is not a number n which added to its sum of digits gives 530030252780.
It is not an unprimeable number, because it can be changed into a prime (530030252789) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12656516 + ... + 12698324.
It is an arithmetic number, because the mean of its divisors is an integer number (13423016880).
Almost surely, 2530030252780 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 530030252780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (644304810240).
530030252780 is an abundant number, since it is smaller than the sum of its proper divisors (758579367700).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
530030252780 is a wasteful number, since it uses less digits than its factorization.
530030252780 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 42999 (or 42997 counting only the distinct ones).
The product of its (nonzero) digits is 50400, while the sum is 35.
The spelling of 530030252780 in words is "five hundred thirty billion, thirty million, two hundred fifty-two thousand, seven hundred eighty".
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