Base | Representation |
---|---|
bin | 11010001000000111… |
… | …000111110101111010 |
3 | 2200102002100222011020 |
4 | 122020013013311322 |
5 | 424423130403112 |
6 | 20515413043310 |
7 | 2012121505245 |
oct | 321007076572 |
9 | 80362328136 |
10 | 28053372282 |
11 | 109964408a1 |
12 | 552b026536 |
13 | 2850cb7090 |
14 | 1501ac425c |
15 | ae2caa48c |
hex | 6881c7d7a |
28053372282 has 64 divisors (see below), whose sum is σ = 63638077440. Its totient is φ = 8172964800.
The previous prime is 28053372257. The next prime is 28053372299. The reversal of 28053372282 is 28227335082.
It is a happy number.
It is a super-3 number, since 3×280533722823 (a number of 32 digits) contains 333 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3420807 + ... + 3428997.
It is an arithmetic number, because the mean of its divisors is an integer number (994344960).
Almost surely, 228053372282 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 28053372282, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31819038720).
28053372282 is an abundant number, since it is smaller than the sum of its proper divisors (35584705158).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28053372282 is a wasteful number, since it uses less digits than its factorization.
28053372282 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10539.
The product of its (nonzero) digits is 322560, while the sum is 42.
The spelling of 28053372282 in words is "twenty-eight billion, fifty-three million, three hundred seventy-two thousand, two hundred eighty-two".
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