Base | Representation |
---|---|
bin | 11100000010010110… |
… | …111010001111010101 |
3 | 2212201000121110220102 |
4 | 130002112322033111 |
5 | 443123202044341 |
6 | 21455120143445 |
7 | 2114004410336 |
oct | 340226721725 |
9 | 85630543812 |
10 | 30104331221 |
11 | 11849123688 |
12 | 5a01a67b85 |
13 | 2ab9b94153 |
14 | 165824628d |
15 | bb2d86c9b |
hex | 7025ba3d5 |
30104331221 has 16 divisors (see below), whose sum is σ = 32738162688. Its totient is φ = 27570009600.
The previous prime is 30104331193. The next prime is 30104331233. The reversal of 30104331221 is 12213340103.
It is a cyclic number.
It is not a de Polignac number, because 30104331221 - 218 = 30104069077 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 30104331193 and 30104331202.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30104331251) 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, 210566 + ... + 323336.
It is an arithmetic number, because the mean of its divisors is an integer number (2046135168).
Almost surely, 230104331221 is an apocalyptic number.
It is an amenable number.
30104331221 is a deficient number, since it is larger than the sum of its proper divisors (2633831467).
30104331221 is a wasteful number, since it uses less digits than its factorization.
30104331221 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 113212.
The product of its (nonzero) digits is 432, while the sum is 20.
Adding to 30104331221 its reverse (12213340103), we get a palindrome (42317671324).
The spelling of 30104331221 in words is "thirty billion, one hundred four million, three hundred thirty-one thousand, two hundred twenty-one".
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