Base | Representation |
---|---|
bin | 11100011100011110… |
… | …100111101101101001 |
3 | 2220211120012210220211 |
4 | 130130132213231221 |
5 | 1000022343410410 |
6 | 22010413021121 |
7 | 2130605322511 |
oct | 343436475551 |
9 | 86746183824 |
10 | 30542560105 |
11 | 11a5352a512 |
12 | 5b047847a1 |
13 | 2b598cc095 |
14 | 169a51c841 |
15 | bdb59c68a |
hex | 71c7a7b69 |
30542560105 has 8 divisors (see below), whose sum is σ = 36655454664. Its totient is φ = 24431126400.
The previous prime is 30542560099. The next prime is 30542560123. The reversal of 30542560105 is 50106524503.
It can be written as a sum of positive squares in 4 ways, for example, as 647804304 + 29894755801 = 25452^2 + 172901^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 30542560105 - 225 = 30509005673 is a prime.
It is a super-2 number, since 2×305425601052 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 318676 + ... + 403285.
It is an arithmetic number, because the mean of its divisors is an integer number (4581931833).
Almost surely, 230542560105 is an apocalyptic number.
It is an amenable number.
30542560105 is a deficient number, since it is larger than the sum of its proper divisors (6112894559).
30542560105 is an equidigital number, since it uses as much as digits as its factorization.
30542560105 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 730427.
The product of its (nonzero) digits is 18000, while the sum is 31.
The spelling of 30542560105 in words is "thirty billion, five hundred forty-two million, five hundred sixty thousand, one hundred five".
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