Base | Representation |
---|---|
bin | 1111010001010… |
… | …1110100001010 |
3 | 11110112012111110 |
4 | 3310111310022 |
5 | 112344134430 |
6 | 10204511150 |
7 | 1405302645 |
oct | 364256412 |
9 | 143465443 |
10 | 64052490 |
11 | 33179647 |
12 | 1954b4b6 |
13 | 103686a8 |
14 | 8714a5c |
15 | 59537b0 |
hex | 3d15d0a |
64052490 has 16 divisors (see below), whose sum is σ = 153726048. Its totient is φ = 17080656.
The previous prime is 64052459. The next prime is 64052491. The reversal of 64052490 is 9425046.
64052490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 2135083 = 64052490 / (6 + 4 + 0 + 5 + 2 + 4 + 9 + 0).
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (64052491) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1067512 + ... + 1067571.
It is an arithmetic number, because the mean of its divisors is an integer number (9607878).
Almost surely, 264052490 is an apocalyptic number.
64052490 is an abundant number, since it is smaller than the sum of its proper divisors (89673558).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
64052490 is a wasteful number, since it uses less digits than its factorization.
64052490 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2135093.
The product of its (nonzero) digits is 8640, while the sum is 30.
The square root of 64052490 is about 8003.2799526194. The cubic root of 64052490 is about 400.1093242844.
The spelling of 64052490 in words is "sixty-four million, fifty-two thousand, four hundred ninety".
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