Base | Representation |
---|---|
bin | 11010010100111101… |
… | …100110111101101011 |
3 | 2200222010002002020220 |
4 | 122110331212331223 |
5 | 430343324411443 |
6 | 20553034221123 |
7 | 2020350245334 |
oct | 322475467553 |
9 | 80863062226 |
10 | 28268982123 |
11 | 10a97115748 |
12 | 558b2847a3 |
13 | 2886878475 |
14 | 15225ab28b |
15 | b06b99a83 |
hex | 694f66f6b |
28268982123 has 8 divisors (see below), whose sum is σ = 38991699600. Its totient is φ = 18196126368.
The previous prime is 28268982101. The next prime is 28268982187. The reversal of 28268982123 is 32128986282.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 28268982123 - 216 = 28268916587 is a prime.
It is not an unprimeable number, because it can be changed into a prime (28268982193) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162465328 + ... + 162465501.
It is an arithmetic number, because the mean of its divisors is an integer number (4873962450).
Almost surely, 228268982123 is an apocalyptic number.
28268982123 is a deficient number, since it is larger than the sum of its proper divisors (10722717477).
28268982123 is a wasteful number, since it uses less digits than its factorization.
28268982123 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 324930861.
The product of its digits is 1327104, while the sum is 51.
The spelling of 28268982123 in words is "twenty-eight billion, two hundred sixty-eight million, nine hundred eighty-two thousand, one hundred twenty-three".
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