Base | Representation |
---|---|
bin | 11011111111010111… |
… | …010010001010011001 |
3 | 2212120112002100021111 |
4 | 123333113102022121 |
5 | 443022322110221 |
6 | 21450123340321 |
7 | 2112524420455 |
oct | 337727221231 |
9 | 85515070244 |
10 | 30054097561 |
11 | 11822833364 |
12 | 59a90816a1 |
13 | 2aac6565a7 |
14 | 16516cb665 |
15 | bad762be1 |
hex | 6ff5d2299 |
30054097561 has 4 divisors (see below), whose sum is σ = 30245525092. Its totient is φ = 29862670032.
The previous prime is 30054097537. The next prime is 30054097573. The reversal of 30054097561 is 16579045003.
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 3759529225 + 26294568336 = 61315^2 + 162156^2 .
It is a cyclic number.
It is not a de Polignac number, because 30054097561 - 219 = 30053573273 is a prime.
It is a super-2 number, since 2×300540975612 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30054007561) 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, 95713530 + ... + 95713843.
It is an arithmetic number, because the mean of its divisors is an integer number (7561381273).
Almost surely, 230054097561 is an apocalyptic number.
It is an amenable number.
30054097561 is a deficient number, since it is larger than the sum of its proper divisors (191427531).
30054097561 is a wasteful number, since it uses less digits than its factorization.
30054097561 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 191427530.
The product of its (nonzero) digits is 113400, while the sum is 40.
The spelling of 30054097561 in words is "thirty billion, fifty-four million, ninety-seven thousand, five hundred sixty-one".
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