Base | Representation |
---|---|
bin | 1101101010010111011110… |
… | …00101010000010001011101 |
3 | 10221101002021012010002020011 |
4 | 12311023233011100101131 |
5 | 12414211042133301341 |
6 | 143521322552123221 |
7 | 6220351565640022 |
oct | 665135705202135 |
9 | 127332235102204 |
10 | 30043012400221 |
11 | 9633196309a57 |
12 | 3452654096511 |
13 | 139c075628242 |
14 | 75c137a6b549 |
15 | 37174aea3b81 |
hex | 1b52ef15045d |
30043012400221 has 4 divisors (see below), whose sum is σ = 31624223579200. Its totient is φ = 28461801221244.
The previous prime is 30043012400201. The next prime is 30043012400227. The reversal of 30043012400221 is 12200421034003.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 30043012400221 - 223 = 30043004011613 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30043012400192 and 30043012400201.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30043012400227) 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, 790605589461 + ... + 790605589498.
It is an arithmetic number, because the mean of its divisors is an integer number (7906055894800).
Almost surely, 230043012400221 is an apocalyptic number.
It is an amenable number.
30043012400221 is a deficient number, since it is larger than the sum of its proper divisors (1581211178979).
30043012400221 is a wasteful number, since it uses less digits than its factorization.
30043012400221 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1581211178978.
The product of its (nonzero) digits is 1152, while the sum is 22.
Adding to 30043012400221 its reverse (12200421034003), we get a palindrome (42243433434224).
The spelling of 30043012400221 in words is "thirty trillion, forty-three billion, twelve million, four hundred thousand, two hundred twenty-one".
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