Base | Representation |
---|---|
bin | 11011111110100110… |
… | …100111110001011101 |
3 | 2212112122002020121001 |
4 | 123332212213301131 |
5 | 443011040403041 |
6 | 21444550110301 |
7 | 2112311120416 |
oct | 337646476135 |
9 | 85478066531 |
10 | 30041341021 |
11 | 1181661016a |
12 | 59a494b391 |
13 | 2aa9b0b143 |
14 | 164db2a80d |
15 | bac593131 |
hex | 6fe9a7c5d |
30041341021 has 4 divisors (see below), whose sum is σ = 30096870844. Its totient is φ = 29985811200.
The previous prime is 30041341013. The next prime is 30041341039. The reversal of 30041341021 is 12014314003.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12014314003 = 48271 ⋅248893.
It can be written as a sum of positive squares in 2 ways, for example, as 15242618521 + 14798722500 = 123461^2 + 121650^2 .
It is a cyclic number.
It is not a de Polignac number, because 30041341021 - 23 = 30041341013 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 30041341021.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30041341321) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27764100 + ... + 27765181.
It is an arithmetic number, because the mean of its divisors is an integer number (7524217711).
Almost surely, 230041341021 is an apocalyptic number.
It is an amenable number.
30041341021 is a deficient number, since it is larger than the sum of its proper divisors (55529823).
30041341021 is an equidigital number, since it uses as much as digits as its factorization.
30041341021 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 55529822.
The product of its (nonzero) digits is 288, while the sum is 19.
Adding to 30041341021 its reverse (12014314003), we get a palindrome (42055655024).
The spelling of 30041341021 in words is "thirty billion, forty-one million, three hundred forty-one thousand, twenty-one".
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