Base | Representation |
---|---|
bin | 11011111100111000… |
… | …001110100101100100 |
3 | 2212110121121222202012 |
4 | 123330320032211210 |
5 | 442431133331040 |
6 | 21442033533352 |
7 | 2111510131226 |
oct | 337470164544 |
9 | 85417558665 |
10 | 30012402020 |
11 | 11801244937 |
12 | 5997114258 |
13 | 2aa3b18083 |
14 | 1649d56416 |
15 | ba9c78865 |
hex | 6fce0e964 |
30012402020 has 48 divisors (see below), whose sum is σ = 64195891200. Its totient is φ = 11782778880.
The previous prime is 30012402001. The next prime is 30012402047. The reversal of 30012402020 is 2020421003.
It is a junction number, because it is equal to n+sod(n) for n = 30012401986 and 30012402004.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 736541 + ... + 776219.
It is an arithmetic number, because the mean of its divisors is an integer number (1337414400).
Almost surely, 230012402020 is an apocalyptic number.
It is an amenable number.
30012402020 is an abundant number, since it is smaller than the sum of its proper divisors (34183489180).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30012402020 is a wasteful number, since it uses less digits than its factorization.
30012402020 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 40388 (or 40386 counting only the distinct ones).
The product of its (nonzero) digits is 96, while the sum is 14.
Adding to 30012402020 its reverse (2020421003), we get a palindrome (32032823023).
The spelling of 30012402020 in words is "thirty billion, twelve million, four hundred two thousand, twenty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.072 sec. • engine limits •