Base | Representation |
---|---|
bin | 11100011111010010… |
… | …110111110101001010 |
3 | 2220221212010110101120 |
4 | 130133102313311022 |
5 | 1000121442441132 |
6 | 22015221500110 |
7 | 2132021053326 |
oct | 343722676512 |
9 | 86855113346 |
10 | 30589812042 |
11 | 11a781735a9 |
12 | 5b18571636 |
13 | 2b666346ca |
14 | 16a28dc986 |
15 | be07d302c |
hex | 71f4b7d4a |
30589812042 has 32 divisors (see below), whose sum is σ = 61452974592. Its totient is φ = 10151092224.
The previous prime is 30589812041. The next prime is 30589812059. The reversal of 30589812042 is 24021898503.
It is a junction number, because it is equal to n+sod(n) for n = 30589811985 and 30589812003.
It is not an unprimeable number, because it can be changed into a prime (30589812041) 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, 3299878 + ... + 3309134.
It is an arithmetic number, because the mean of its divisors is an integer number (1920405456).
Almost surely, 230589812042 is an apocalyptic number.
30589812042 is an abundant number, since it is smaller than the sum of its proper divisors (30863162550).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30589812042 is a wasteful number, since it uses less digits than its factorization.
30589812042 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 11662.
The product of its (nonzero) digits is 138240, while the sum is 42.
The spelling of 30589812042 in words is "thirty billion, five hundred eighty-nine million, eight hundred twelve thousand, forty-two".
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