Base | Representation |
---|---|
bin | 11011111101111111… |
… | …100100010000101100 |
3 | 2212111220211002200211 |
4 | 123331333210100230 |
5 | 443000430244040 |
6 | 21443542432204 |
7 | 2112125110132 |
oct | 337577442054 |
9 | 85456732624 |
10 | 30031103020 |
11 | 11810858206 |
12 | 59a1432664 |
13 | 2aa7965159 |
14 | 164c623752 |
15 | bab71e8ea |
hex | 6fdfe442c |
30031103020 has 12 divisors (see below), whose sum is σ = 63065316384. Its totient is φ = 12012441200.
The previous prime is 30031103017. The next prime is 30031103071. The reversal of 30031103020 is 2030113003.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 750777556 + ... + 750777595.
It is an arithmetic number, because the mean of its divisors is an integer number (5255443032).
Almost surely, 230031103020 is an apocalyptic number.
It is an amenable number.
30031103020 is an abundant number, since it is smaller than the sum of its proper divisors (33034213364).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30031103020 is a wasteful number, since it uses less digits than its factorization.
30031103020 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1501555160 (or 1501555158 counting only the distinct ones).
The product of its (nonzero) digits is 54, while the sum is 13.
Adding to 30031103020 its reverse (2030113003), we get a palindrome (32061216023).
The spelling of 30031103020 in words is "thirty billion, thirty-one million, one hundred three thousand, twenty".
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