Base | Representation |
---|---|
bin | 1111001010111111… |
… | …10000100110011101 |
3 | 210000122202212010201 |
4 | 13211133300212131 |
5 | 113140142302133 |
6 | 3424125303501 |
7 | 405563461201 |
oct | 74537604635 |
9 | 23018685121 |
10 | 8145275293 |
11 | 34aa882981 |
12 | 16b3a04b91 |
13 | 9ca67962c |
14 | 573ac2b01 |
15 | 32a144d7d |
hex | 1e57f099d |
8145275293 has 4 divisors (see below), whose sum is σ = 8146316448. Its totient is φ = 8144234140.
The previous prime is 8145275261. The next prime is 8145275309. The reversal of 8145275293 is 3925725418.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 8145275293 - 25 = 8145275261 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (8145275213) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 508753 + ... + 524518.
It is an arithmetic number, because the mean of its divisors is an integer number (2036579112).
Almost surely, 28145275293 is an apocalyptic number.
It is an amenable number.
8145275293 is a deficient number, since it is larger than the sum of its proper divisors (1041155).
8145275293 is a wasteful number, since it uses less digits than its factorization.
8145275293 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1041154.
The product of its digits is 604800, while the sum is 46.
The square root of 8145275293 is about 90251.1789008875. The cubic root of 8145275293 is about 2012.0337239432.
The spelling of 8145275293 in words is "eight billion, one hundred forty-five million, two hundred seventy-five thousand, two hundred ninety-three".
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