| Base | Representation |
|---|---|
| bin | 111011101001001… |
| … | …1001110011111100 |
| 3 | 12011110211020100110 |
| 4 | 1313102121303330 |
| 5 | 13044314004040 |
| 6 | 530331030020 |
| 7 | 100410610560 |
| oct | 16722316374 |
| 9 | 5143736313 |
| 10 | 2001313020 |
| 11 | 937764103 |
| 12 | 47a29b310 |
| 13 | 25b816bb5 |
| 14 | 14db1b6a0 |
| 15 | baa71980 |
| hex | 77499cfc |
2001313020 has 96 divisors (see below), whose sum is σ = 6464199168. Its totient is φ = 453157632.
The previous prime is 2001312991. The next prime is 2001313051. The reversal of 2001313020 is 203131002.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (12).
It is a junction number, because it is equal to n+sod(n) for n = 2001312987 and 2001313005.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22674 + ... + 67206.
It is an arithmetic number, because the mean of its divisors is an integer number (67335408).
Almost surely, 22001313020 is an apocalyptic number.
2001313020 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 2001313020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3232099584).
2001313020 is an abundant number, since it is smaller than the sum of its proper divisors (4462886148).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2001313020 is a wasteful number, since it uses less digits than its factorization.
2001313020 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 44659 (or 44657 counting only the distinct ones).
The product of its (nonzero) digits is 36, while the sum is 12.
The square root of 2001313020 is about 44736.0371512721. The cubic root of 2001313020 is about 1260.1967065027.
Adding to 2001313020 its reverse (203131002), we get a palindrome (2204444022).
It can be divided in two parts, 20013 and 13020, that added together give a palindrome (33033).
The spelling of 2001313020 in words is "two billion, one million, three hundred thirteen thousand, twenty".
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