Base | Representation |
---|---|
bin | 11010100100010010… |
… | …100011101110100011 |
3 | 2201122000221122202021 |
4 | 122210102203232203 |
5 | 431410142212011 |
6 | 21034342002311 |
7 | 2026622056660 |
oct | 324422435643 |
9 | 81560848667 |
10 | 28526132131 |
11 | 11109292312 |
12 | 5641416397 |
13 | 28c7c22433 |
14 | 15487c8a67 |
15 | b1e542471 |
hex | 6a44a3ba3 |
28526132131 has 8 divisors (see below), whose sum is σ = 32606562560. Its totient is φ = 24447018888.
The previous prime is 28526132119. The next prime is 28526132153. The reversal of 28526132131 is 13123162582.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 28526132131 - 213 = 28526123939 is a prime.
It is a super-2 number, since 2×285261321312 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (28526132231) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 282441 + ... + 369898.
It is an arithmetic number, because the mean of its divisors is an integer number (4075820320).
Almost surely, 228526132131 is an apocalyptic number.
28526132131 is a deficient number, since it is larger than the sum of its proper divisors (4080430429).
28526132131 is an equidigital number, since it uses as much as digits as its factorization.
28526132131 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 658593.
The product of its digits is 17280, while the sum is 34.
The spelling of 28526132131 in words is "twenty-eight billion, five hundred twenty-six million, one hundred thirty-two thousand, one hundred thirty-one".
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