Base | Representation |
---|---|
bin | 111100110011110… |
… | …101010001001000 |
3 | 2122002201120102000 |
4 | 330303311101020 |
5 | 4042134023423 |
6 | 245122511000 |
7 | 34165505520 |
oct | 7463652110 |
9 | 2562646360 |
10 | 1020220488 |
11 | 483984831 |
12 | 245805460 |
13 | 133499a81 |
14 | 996d2680 |
15 | 5e877843 |
hex | 3ccf5448 |
1020220488 has 64 divisors (see below), whose sum is σ = 3238800000. Its totient is φ = 291491136.
The previous prime is 1020220483. The next prime is 1020220511. The reversal of 1020220488 is 8840220201.
1020220488 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is not an unprimeable number, because it can be changed into a prime (1020220483) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 335863 + ... + 338886.
It is an arithmetic number, because the mean of its divisors is an integer number (50606250).
Almost surely, 21020220488 is an apocalyptic number.
1020220488 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
It is an amenable number.
1020220488 is an abundant number, since it is smaller than the sum of its proper divisors (2218579512).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1020220488 is a wasteful number, since it uses less digits than its factorization.
1020220488 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 674771 (or 674761 counting only the distinct ones).
The product of its (nonzero) digits is 2048, while the sum is 27.
The square root of 1020220488 is about 31940.8905323568. The cubic root of 1020220488 is about 1006.6952364351.
Adding to 1020220488 its reverse (8840220201), we get a palindrome (9860440689).
The spelling of 1020220488 in words is "one billion, twenty million, two hundred twenty thousand, four hundred eighty-eight".
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