Base | Representation |
---|---|
bin | 11010000110101111… |
… | …010011010010010000 |
3 | 2200100111001100011220 |
4 | 122012233103102100 |
5 | 424401232203410 |
6 | 20513231405040 |
7 | 2011422022266 |
oct | 320657232220 |
9 | 80314040156 |
10 | 28030350480 |
11 | 10984447210 |
12 | 5523383780 |
13 | 28492b6402 |
14 | 14dca10436 |
15 | ae0c5e070 |
hex | 686bd3490 |
28030350480 has 320 divisors, whose sum is σ = 98831674368. Its totient is φ = 6511380480.
The previous prime is 28030350479. The next prime is 28030350503. The reversal of 28030350480 is 8405303082.
It is a Harshad number since it is a multiple of its sum of digits (33).
It is an unprimeable number.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6542419 + ... + 6546701.
Almost surely, 228030350480 is an apocalyptic number.
28030350480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 28030350480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49415837184).
28030350480 is an abundant number, since it is smaller than the sum of its proper divisors (70801323888).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28030350480 is a wasteful number, since it uses less digits than its factorization.
28030350480 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4414 (or 4408 counting only the distinct ones).
The product of its (nonzero) digits is 23040, while the sum is 33.
The spelling of 28030350480 in words is "twenty-eight billion, thirty million, three hundred fifty thousand, four hundred eighty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •