Base | Representation |
---|---|
bin | 11010100010100101… |
… | …001101101111010001 |
3 | 2201120001000101110110 |
4 | 122202211031233101 |
5 | 431330322441434 |
6 | 21031435351533 |
7 | 2026123325106 |
oct | 324245155721 |
9 | 81501011413 |
10 | 28497468369 |
11 | 110a4094857 |
12 | 56338b25a9 |
13 | 28c1cc7726 |
14 | 1544a86aad |
15 | b1bc7e4e9 |
hex | 6a294dbd1 |
28497468369 has 16 divisors (see below), whose sum is σ = 38103609600. Its totient is φ = 18944860176.
The previous prime is 28497468361. The next prime is 28497468403. The reversal of 28497468369 is 96386479482.
It is not a de Polignac number, because 28497468369 - 23 = 28497468361 is a prime.
It is a super-2 number, since 2×284974683692 (a number of 22 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (28497468361) 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, 4928322 + ... + 4934100.
It is an arithmetic number, because the mean of its divisors is an integer number (2381475600).
Almost surely, 228497468369 is an apocalyptic number.
It is an amenable number.
28497468369 is a deficient number, since it is larger than the sum of its proper divisors (9606141231).
28497468369 is a wasteful number, since it uses less digits than its factorization.
28497468369 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10124.
The product of its digits is 125411328, while the sum is 66.
The spelling of 28497468369 in words is "twenty-eight billion, four hundred ninety-seven million, four hundred sixty-eight thousand, three hundred sixty-nine".
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