Base | Representation |
---|---|
bin | 11100011101001100… |
… | …100001010010100101 |
3 | 2220212101212010011011 |
4 | 130131030201102211 |
5 | 1000033433424141 |
6 | 22011522542221 |
7 | 2131112515243 |
oct | 343514412245 |
9 | 86771763134 |
10 | 30554592421 |
11 | 11a5a2a8581 |
12 | 5b08807971 |
13 | 2b5c2529b2 |
14 | 169bd71793 |
15 | bdc677881 |
hex | 71d3214a5 |
30554592421 has 2 divisors, whose sum is σ = 30554592422. Its totient is φ = 30554592420.
The previous prime is 30554592311. The next prime is 30554592427. The reversal of 30554592421 is 12429545503.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 30175511521 + 379080900 = 173711^2 + 19470^2 .
It is an emirp because it is prime and its reverse (12429545503) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 30554592421 - 219 = 30554068133 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30554592427) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15277296210 + 15277296211.
It is an arithmetic number, because the mean of its divisors is an integer number (15277296211).
Almost surely, 230554592421 is an apocalyptic number.
It is an amenable number.
30554592421 is a deficient number, since it is larger than the sum of its proper divisors (1).
30554592421 is an equidigital number, since it uses as much as digits as its factorization.
30554592421 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 216000, while the sum is 40.
The spelling of 30554592421 in words is "thirty billion, five hundred fifty-four million, five hundred ninety-two thousand, four hundred twenty-one".
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