Base | Representation |
---|---|
bin | 110110111101… |
… | …0001101011110 |
3 | 2000012210210210 |
4 | 1231322031132 |
5 | 24333442001 |
6 | 2505313250 |
7 | 466620240 |
oct | 155721536 |
9 | 60183723 |
10 | 28812126 |
11 | 15299a82 |
12 | 9795826 |
13 | 5c7a3c5 |
14 | 3b80090 |
15 | 27e1dd6 |
hex | 1b7a35e |
28812126 has 16 divisors (see below), whose sum is σ = 65856384. Its totient is φ = 8232024.
The previous prime is 28812101. The next prime is 28812137. The reversal of 28812126 is 62121882.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 28812093 and 28812102.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 342960 + ... + 343043.
It is an arithmetic number, because the mean of its divisors is an integer number (4116024).
Almost surely, 228812126 is an apocalyptic number.
28812126 is an abundant number, since it is smaller than the sum of its proper divisors (37044258).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28812126 is a wasteful number, since it uses less digits than its factorization.
28812126 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 686015.
The product of its digits is 3072, while the sum is 30.
The square root of 28812126 is about 5367.6928004497. The cubic root of 28812126 is about 306.5667866812.
The spelling of 28812126 in words is "twenty-eight million, eight hundred twelve thousand, one hundred twenty-six".
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