Base | Representation |
---|---|
bin | 1111010100010… |
… | …0010110010111 |
3 | 11110212212221220 |
4 | 3311010112113 |
5 | 112421234340 |
6 | 10212541423 |
7 | 1410025440 |
oct | 365042627 |
9 | 143785856 |
10 | 64243095 |
11 | 33299874 |
12 | 19621873 |
13 | 10404387 |
14 | 87642c7 |
15 | 598eed0 |
hex | 3d44597 |
64243095 has 16 divisors (see below), whose sum is σ = 117473280. Its totient is φ = 29368224.
The previous prime is 64243093. The next prime is 64243103. The reversal of 64243095 is 59034246.
It is not a de Polignac number, because 64243095 - 21 = 64243093 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (64243093) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 305815 + ... + 306024.
It is an arithmetic number, because the mean of its divisors is an integer number (7342080).
Almost surely, 264243095 is an apocalyptic number.
64243095 is a deficient number, since it is larger than the sum of its proper divisors (53230185).
64243095 is a wasteful number, since it uses less digits than its factorization.
64243095 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 611854.
The product of its (nonzero) digits is 25920, while the sum is 33.
The square root of 64243095 is about 8015.1790373017. The cubic root of 64243095 is about 400.5058080426.
The spelling of 64243095 in words is "sixty-four million, two hundred forty-three thousand, ninety-five".
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