Base | Representation |
---|---|
bin | 11011111100010100… |
… | …110101100000010000 |
3 | 2212102222011122000201 |
4 | 123330110311200100 |
5 | 442421244433430 |
6 | 21441103024544 |
7 | 2111335230265 |
oct | 337424654020 |
9 | 85388148021 |
10 | 30003124240 |
11 | 117a6a88351 |
12 | 5993b9b154 |
13 | 2aa1c1a16b |
14 | 1648a1d26c |
15 | ba90448ca |
hex | 6fc535810 |
30003124240 has 80 divisors (see below), whose sum is σ = 70091357616. Its totient is φ = 11943936000.
The previous prime is 30003124189. The next prime is 30003124241. The reversal of 30003124240 is 4242130003.
It can be written as a sum of positive squares in 8 ways, for example, as 15968016 + 29987156224 = 3996^2 + 173168^2 .
It is a tau number, because it is divible by the number of its divisors (80).
It is not an unprimeable number, because it can be changed into a prime (30003124241) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18739440 + ... + 18741040.
Almost surely, 230003124240 is an apocalyptic number.
It is an amenable number.
30003124240 is an abundant number, since it is smaller than the sum of its proper divisors (40088233376).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30003124240 is a wasteful number, since it uses less digits than its factorization.
30003124240 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2588 (or 2582 counting only the distinct ones).
The product of its (nonzero) digits is 576, while the sum is 19.
Adding to 30003124240 its reverse (4242130003), we get a palindrome (34245254243).
The spelling of 30003124240 in words is "thirty billion, three million, one hundred twenty-four thousand, two hundred forty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.073 sec. • engine limits •