Base | Representation |
---|---|
bin | 100111101111000101… |
… | …111000000110100111 |
3 | 11002010110121102002010 |
4 | 213233011320012213 |
5 | 1144334444011212 |
6 | 31333412245303 |
7 | 3040206010623 |
oct | 475705700647 |
9 | 132113542063 |
10 | 42666000807 |
11 | 171049329a1 |
12 | 8328910833 |
13 | 403c4c3931 |
14 | 20ca6b0183 |
15 | 119aaa303c |
hex | 9ef1781a7 |
42666000807 has 4 divisors (see below), whose sum is σ = 56888001080. Its totient is φ = 28444000536.
The previous prime is 42666000781. The next prime is 42666000821. The reversal of 42666000807 is 70800066624.
It is a semiprime because it is the product of two primes.
It is not a de Polignac number, because 42666000807 - 228 = 42397565351 is a prime.
It is the 206558-th Hogben number.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (42666000887) by changing a digit.
It is a nontrivial repunit in base 206557.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7111000132 + ... + 7111000137.
It is an arithmetic number, because the mean of its divisors is an integer number (14222000270).
Almost surely, 242666000807 is an apocalyptic number.
42666000807 is a deficient number, since it is larger than the sum of its proper divisors (14222000273).
42666000807 is a wasteful number, since it uses less digits than its factorization.
42666000807 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14222000272.
The product of its (nonzero) digits is 96768, while the sum is 39.
The spelling of 42666000807 in words is "forty-two billion, six hundred sixty-six million, eight hundred seven", and thus it is an aban number.
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