Base | Representation |
---|---|
bin | 10001101011011111… |
… | …000101100000010011 |
3 | 1210222222012110212010 |
4 | 101223133011200103 |
5 | 302334143232212 |
6 | 12415403234003 |
7 | 1241264241000 |
oct | 215337054023 |
9 | 53888173763 |
10 | 18983180307 |
11 | 8061568373 |
12 | 3819518903 |
13 | 1a36b2ba90 |
14 | cc123a8a7 |
15 | 76186603c |
hex | 46b7c5813 |
18983180307 has 96 divisors (see below), whose sum is σ = 33557260800. Its totient is φ = 9483687360.
The previous prime is 18983180273. The next prime is 18983180317. The reversal of 18983180307 is 70308138981.
It is not a de Polignac number, because 18983180307 - 212 = 18983176211 is a prime.
It is a super-2 number, since 2×189831803072 (a number of 21 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (18983180317) 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 95 ways as a sum of consecutive naturals, for example, 4827132 + ... + 4831062.
It is an arithmetic number, because the mean of its divisors is an integer number (349554800).
Almost surely, 218983180307 is an apocalyptic number.
18983180307 is a deficient number, since it is larger than the sum of its proper divisors (14574080493).
18983180307 is a wasteful number, since it uses less digits than its factorization.
18983180307 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4006 (or 3973 counting only the distinct ones).
The product of its (nonzero) digits is 290304, while the sum is 48.
The spelling of 18983180307 in words is "eighteen billion, nine hundred eighty-three million, one hundred eighty thousand, three hundred seven".
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