Base | Representation |
---|---|
bin | 11011111111011100… |
… | …110000001110111010 |
3 | 2212120121210012012111 |
4 | 123333130300032322 |
5 | 443023204001300 |
6 | 21450214202534 |
7 | 2112542542060 |
oct | 337734601672 |
9 | 85517705174 |
10 | 30055531450 |
11 | 1182362269a |
12 | 59a965344a |
13 | 2aaca39149 |
14 | 1651982030 |
15 | bad9479ba |
hex | 6ff7303ba |
30055531450 has 48 divisors (see below), whose sum is σ = 64049097024. Its totient is φ = 10279008000.
The previous prime is 30055531439. The next prime is 30055531459. The reversal of 30055531450 is 5413555003.
It is not an unprimeable number, because it can be changed into a prime (30055531459) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33277 + ... + 247423.
It is an arithmetic number, because the mean of its divisors is an integer number (1334356188).
Almost surely, 230055531450 is an apocalyptic number.
30055531450 is an abundant number, since it is smaller than the sum of its proper divisors (33993565574).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30055531450 is a wasteful number, since it uses less digits than its factorization.
30055531450 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 214567 (or 214562 counting only the distinct ones).
The product of its (nonzero) digits is 22500, while the sum is 31.
It can be divided in two parts, 3005553 and 1450, that added together give a palindrome (3007003).
The spelling of 30055531450 in words is "thirty billion, fifty-five million, five hundred thirty-one thousand, four hundred fifty".
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