Base | Representation |
---|---|
bin | 111100011100100… |
… | …0011100010111000 |
3 | 12020100110101102100 |
4 | 1320321003202320 |
5 | 13123211111043 |
6 | 533131503400 |
7 | 101155415364 |
oct | 17071034270 |
9 | 5210411370 |
10 | 2028222648 |
11 | 950973771 |
12 | 4872b7b60 |
13 | 26427935a |
14 | 1535242a4 |
15 | bd0d9cd3 |
hex | 78e438b8 |
2028222648 has 48 divisors (see below), whose sum is σ = 5682526200. Its totient is φ = 652760640.
The previous prime is 2028222617. The next prime is 2028222653. The reversal of 2028222648 is 8462228202.
2028222648 is a `hidden beast` number, since 2 + 0 + 2 + 8 + 2 + 2 + 2 + 648 = 666.
It is a super-2 number, since 2×20282226482 = 8227374219720263808, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 483598 + ... + 487773.
Almost surely, 22028222648 is an apocalyptic number.
It is an amenable number.
2028222648 is an abundant number, since it is smaller than the sum of its proper divisors (3654303552).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2028222648 is a wasteful number, since it uses less digits than its factorization.
2028222648 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 971412 (or 971405 counting only the distinct ones).
The product of its (nonzero) digits is 49152, while the sum is 36.
The square root of 2028222648 is about 45035.7929651516. The cubic root of 2028222648 is about 1265.8197747385.
It can be divided in two parts, 2028 and 222648, that added together give a square (224676 = 4742).
The spelling of 2028222648 in words is "two billion, twenty-eight million, two hundred twenty-two thousand, six hundred forty-eight".
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