Base | Representation |
---|---|
bin | 10001000110110100… |
… | …111010100000111110 |
3 | 1202102002220110200002 |
4 | 101012310322200332 |
5 | 300104221123340 |
6 | 12234353034302 |
7 | 1220115442343 |
oct | 210664724076 |
9 | 52362813602 |
10 | 18368145470 |
11 | 7876380614 |
12 | 3687555992 |
13 | 196959aa3c |
14 | c6369c7ca |
15 | 727878715 |
hex | 446d3a83e |
18368145470 has 8 divisors (see below), whose sum is σ = 33062661864. Its totient is φ = 7347258184.
The previous prime is 18368145469. The next prime is 18368145503. The reversal of 18368145470 is 7454186381.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a congruent number.
It is an unprimeable number.
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 3 ways as a sum of consecutive naturals, for example, 918407264 + ... + 918407283.
It is an arithmetic number, because the mean of its divisors is an integer number (4132832733).
Almost surely, 218368145470 is an apocalyptic number.
18368145470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
18368145470 is a deficient number, since it is larger than the sum of its proper divisors (14694516394).
18368145470 is a wasteful number, since it uses less digits than its factorization.
18368145470 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1836814554.
The product of its (nonzero) digits is 645120, while the sum is 47.
The spelling of 18368145470 in words is "eighteen billion, three hundred sixty-eight million, one hundred forty-five thousand, four hundred seventy".
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