Base | Representation |
---|---|
bin | 11011111110101001… |
… | …111110101101011001 |
3 | 2212112200201222020201 |
4 | 123332221332231121 |
5 | 443011302041101 |
6 | 21445021022201 |
7 | 2112321445213 |
oct | 337651765531 |
9 | 85480658221 |
10 | 30042221401 |
11 | 11817061655 |
12 | 59a50b4961 |
13 | 2aaa058a8a |
14 | 164dcb95b3 |
15 | bac6b8e01 |
hex | 6fea7eb59 |
30042221401 has 4 divisors (see below), whose sum is σ = 31078160100. Its totient is φ = 29006282704.
The previous prime is 30042221389. The next prime is 30042221411. The reversal of 30042221401 is 10412224003.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 9039255625 + 21002965776 = 95075^2 + 144924^2 .
It is a cyclic number.
It is not a de Polignac number, because 30042221401 - 211 = 30042219353 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30042221411) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 517969306 + ... + 517969363.
It is an arithmetic number, because the mean of its divisors is an integer number (7769540025).
Almost surely, 230042221401 is an apocalyptic number.
It is an amenable number.
30042221401 is a deficient number, since it is larger than the sum of its proper divisors (1035938699).
30042221401 is a wasteful number, since it uses less digits than its factorization.
30042221401 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1035938698.
The product of its (nonzero) digits is 384, while the sum is 19.
Adding to 30042221401 its reverse (10412224003), we get a palindrome (40454445404).
The spelling of 30042221401 in words is "thirty billion, forty-two million, two hundred twenty-one thousand, four hundred one".
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