Base | Representation |
---|---|
bin | 10001011110101010… |
… | …111000010101010010 |
3 | 1210102222121201210111 |
4 | 101132222320111102 |
5 | 301414122341044 |
6 | 12342202551534 |
7 | 1233043540522 |
oct | 213652702522 |
9 | 53388551714 |
10 | 18768168274 |
11 | 7a61161679 |
12 | 37795085aa |
13 | 1a0141981b |
14 | ca086b682 |
15 | 74ca43b34 |
hex | 45eab8552 |
18768168274 has 8 divisors (see below), whose sum is σ = 28156609008. Its totient is φ = 9382631940.
The previous prime is 18768168259. The next prime is 18768168311. The reversal of 18768168274 is 47286186781.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a super-2 number, since 2×187681682742 (a number of 21 digits) contains 22 as substring.
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, 709872 + ... + 735835.
It is an arithmetic number, because the mean of its divisors is an integer number (3519576126).
Almost surely, 218768168274 is an apocalyptic number.
18768168274 is a deficient number, since it is larger than the sum of its proper divisors (9388440734).
18768168274 is a wasteful number, since it uses less digits than its factorization.
18768168274 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1452200.
The product of its digits is 7225344, while the sum is 58.
The spelling of 18768168274 in words is "eighteen billion, seven hundred sixty-eight million, one hundred sixty-eight thousand, two hundred seventy-four".
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