Base | Representation |
---|---|
bin | 10010111010101111… |
… | …111101010000010110 |
3 | 1221102122111110200120 |
4 | 102322233331100112 |
5 | 313100112044110 |
6 | 13155350052410 |
7 | 1316242451115 |
oct | 227257752026 |
9 | 57378443616 |
10 | 20313003030 |
11 | 8684184911 |
12 | 3b2a94a106 |
13 | 1bb94a9128 |
14 | da9ac1c7c |
15 | 7dd497870 |
hex | 4babfd416 |
20313003030 has 32 divisors (see below), whose sum is σ = 48964111200. Its totient is φ = 5393144832.
The previous prime is 20313003023. The next prime is 20313003031. The reversal of 20313003030 is 3030031302.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20313003031) 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, 1471515 + ... + 1485254.
It is an arithmetic number, because the mean of its divisors is an integer number (1530128475).
Almost surely, 220313003030 is an apocalyptic number.
20313003030 is an abundant number, since it is smaller than the sum of its proper divisors (28651108170).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20313003030 is a wasteful number, since it uses less digits than its factorization.
20313003030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2957008.
The product of its (nonzero) digits is 162, while the sum is 15.
Adding to 20313003030 its reverse (3030031302), we get a palindrome (23343034332).
The spelling of 20313003030 in words is "twenty billion, three hundred thirteen million, three thousand, thirty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.084 sec. • engine limits •