Base | Representation |
---|---|
bin | 11010001000100001… |
… | …110111110101001110 |
3 | 2200102120120020020100 |
4 | 122020201313311032 |
5 | 424431424301330 |
6 | 20520223231530 |
7 | 2012235222300 |
oct | 321041676516 |
9 | 80376506210 |
10 | 28060384590 |
11 | 1099a3a0297 |
12 | 55314485a6 |
13 | 28525a0a84 |
14 | 15029cb970 |
15 | ae36e3060 |
hex | 688877d4e |
28060384590 has 288 divisors, whose sum is σ = 86983393536. Its totient is φ = 6256051200.
The previous prime is 28060384577. The next prime is 28060384619. The reversal of 28060384590 is 9548306082.
28060384590 is a `hidden beast` number, since 28 + 0 + 6 + 0 + 38 + 4 + 590 = 666.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 32514499 + ... + 32515361.
It is an arithmetic number, because the mean of its divisors is an integer number (302025672).
Almost surely, 228060384590 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 28060384590, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43491696768).
28060384590 is an abundant number, since it is smaller than the sum of its proper divisors (58923008946).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28060384590 is a wasteful number, since it uses less digits than its factorization.
28060384590 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1064 (or 1054 counting only the distinct ones).
The product of its (nonzero) digits is 414720, while the sum is 45.
The spelling of 28060384590 in words is "twenty-eight billion, sixty million, three hundred eighty-four thousand, five hundred ninety".
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