Base | Representation |
---|---|
bin | 11010010101111011… |
… | …110010101101000001 |
3 | 2201000020202021001011 |
4 | 122111323302231001 |
5 | 430412013030022 |
6 | 20554415440521 |
7 | 2020635640216 |
oct | 322573625501 |
9 | 81006667034 |
10 | 28285283137 |
11 | 10aa5339961 |
12 | 5594826141 |
13 | 288a065037 |
14 | 1524811b0d |
15 | b08319977 |
hex | 695ef2b41 |
28285283137 has 8 divisors (see below), whose sum is σ = 29516872320. Its totient is φ = 27053843520.
The previous prime is 28285283119. The next prime is 28285283141. The reversal of 28285283137 is 73138258282.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-28285283137 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (28285083137) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 536937 + ... + 587257.
It is an arithmetic number, because the mean of its divisors is an integer number (3689609040).
Almost surely, 228285283137 is an apocalyptic number.
It is an amenable number.
28285283137 is a deficient number, since it is larger than the sum of its proper divisors (1231589183).
28285283137 is a wasteful number, since it uses less digits than its factorization.
28285283137 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 74783.
The product of its digits is 1290240, while the sum is 49.
The spelling of 28285283137 in words is "twenty-eight billion, two hundred eighty-five million, two hundred eighty-three thousand, one hundred thirty-seven".
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