Base | Representation |
---|---|
bin | 10000110100100000… |
… | …111011111100001101 |
3 | 1201121200210201112221 |
4 | 100310200323330031 |
5 | 243442043343131 |
6 | 12144100055341 |
7 | 1206365163121 |
oct | 206440737415 |
9 | 51550721487 |
10 | 18060918541 |
11 | 7728a10466 |
12 | 3600694551 |
13 | 191aa3c663 |
14 | c34967581 |
15 | 70a8dd411 |
hex | 43483bf0d |
18060918541 has 8 divisors (see below), whose sum is σ = 19338195960. Its totient is φ = 16807515648.
The previous prime is 18060918527. The next prime is 18060918581. The reversal of 18060918541 is 14581906081.
It can be written as a sum of positive squares in 4 ways, for example, as 5621641 + 18055296900 = 2371^2 + 134370^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 18060918541 - 27 = 18060918413 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (18060918581) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5967066 + ... + 5970091.
It is an arithmetic number, because the mean of its divisors is an integer number (2417274495).
Almost surely, 218060918541 is an apocalyptic number.
It is an amenable number.
18060918541 is a deficient number, since it is larger than the sum of its proper divisors (1277277419).
18060918541 is a wasteful number, since it uses less digits than its factorization.
18060918541 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 11937263.
The product of its (nonzero) digits is 69120, while the sum is 43.
The spelling of 18060918541 in words is "eighteen billion, sixty million, nine hundred eighteen thousand, five hundred forty-one".
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