Base | Representation |
---|---|
bin | 1010001101001… |
… | …0111110010110 |
3 | 2222112211102111 |
4 | 2203102332112 |
5 | 41424312230 |
6 | 4125301234 |
7 | 1026566206 |
oct | 243227626 |
9 | 88484374 |
10 | 42807190 |
11 | 22188748 |
12 | 1240481a |
13 | 8b3a4ca |
14 | 5984406 |
15 | 3b5892a |
hex | 28d2f96 |
42807190 has 64 divisors (see below), whose sum is σ = 89035200. Its totient is φ = 14708736.
The previous prime is 42807181. The next prime is 42807197. The reversal of 42807190 is 9170824.
It is a super-2 number, since 2×428071902 = 3664911031392200, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (42807197) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 93442 + ... + 93898.
It is an arithmetic number, because the mean of its divisors is an integer number (1391175).
Almost surely, 242807190 is an apocalyptic number.
42807190 is an abundant number, since it is smaller than the sum of its proper divisors (46228010).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
42807190 is a wasteful number, since it uses less digits than its factorization.
42807190 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 529.
The product of its (nonzero) digits is 4032, while the sum is 31.
The square root of 42807190 is about 6542.7203822263. The cubic root of 42807190 is about 349.8153856318.
The spelling of 42807190 in words is "forty-two million, eight hundred seven thousand, one hundred ninety".
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