Base | Representation |
---|---|
bin | 111100001110000… |
… | …1010010101011000 |
3 | 12012211012120100012 |
4 | 1320130022111120 |
5 | 13114241221110 |
6 | 532301301052 |
7 | 101034140600 |
oct | 17034122530 |
9 | 5184176305 |
10 | 2020648280 |
11 | 94766aa62 |
12 | 484864788 |
13 | 262826891 |
14 | 152511c00 |
15 | bc5e0905 |
hex | 7870a558 |
2020648280 has 96 divisors (see below), whose sum is σ = 5352888240. Its totient is φ = 684391680.
The previous prime is 2020648277. The next prime is 2020648313. The reversal of 2020648280 is 828460202.
It is a happy number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 156470 + ... + 168890.
Almost surely, 22020648280 is an apocalyptic number.
2020648280 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 2020648280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2676444120).
2020648280 is an abundant number, since it is smaller than the sum of its proper divisors (3332239960).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2020648280 is a wasteful number, since it uses less digits than its factorization.
2020648280 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12529 (or 12518 counting only the distinct ones).
The product of its (nonzero) digits is 12288, while the sum is 32.
The square root of 2020648280 is about 44951.6215502845. The cubic root of 2020648280 is about 1264.2420806301.
It can be divided in two parts, 20206 and 48280, that added together give a palindrome (68486).
The spelling of 2020648280 in words is "two billion, twenty million, six hundred forty-eight thousand, two hundred eighty".
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