Base | Representation |
---|---|
bin | 11100010101010000… |
… | …000101101000110000 |
3 | 2220112010001200001012 |
4 | 130111100011220300 |
5 | 444300323410000 |
6 | 21550402130052 |
7 | 2124603603614 |
oct | 342520055060 |
9 | 86463050035 |
10 | 30421310000 |
11 | 119a1044514 |
12 | 5a90050928 |
13 | 2b3a758163 |
14 | 1688399344 |
15 | bd0aeb735 |
hex | 715405a30 |
30421310000 has 100 divisors (see below), whose sum is σ = 74861961504. Its totient is φ = 11968800000.
The previous prime is 30421309999. The next prime is 30421310009. The reversal of 30421310000 is 1312403.
It is a tau number, because it is divible by the number of its divisors (100).
It is a super-2 number, since 2×304213100002 (a number of 22 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (30421310009) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 585065 + ... + 634935.
Almost surely, 230421310000 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30421310000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37430980752).
30421310000 is an abundant number, since it is smaller than the sum of its proper divisors (44440651504).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30421310000 is an equidigital number, since it uses as much as digits as its factorization.
30421310000 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 49960 (or 49939 counting only the distinct ones).
The product of its (nonzero) digits is 72, while the sum is 14.
Adding to 30421310000 its reverse (1312403), we get a palindrome (30422622403).
The spelling of 30421310000 in words is "thirty billion, four hundred twenty-one million, three hundred ten thousand".
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