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42666000807 = 314222000269
BaseRepresentation
bin100111101111000101…
…111000000110100111
311002010110121102002010
4213233011320012213
51144334444011212
631333412245303
73040206010623
oct475705700647
9132113542063
1042666000807
11171049329a1
128328910833
13403c4c3931
1420ca6b0183
15119aaa303c
hex9ef1781a7

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.

Divisors: 1 3 14222000269 42666000807