| Base | Representation |
|---|---|
| bin | 1001110001000000… |
| … | …0000000000000000 |
| 3 | 20202200200221122101 |
| 4 | 2130100000000000 |
| 5 | 20332042040000 |
| 6 | 1112042320144 |
| 7 | 121650605134 |
| oct | 23420000000 |
| 9 | 6680627571 |
| 10 | 2621440000 |
| 11 | 1125809743 |
| 12 | 611ab9054 |
| 13 | 32a13b93a |
| 14 | 1ac2233c4 |
| 15 | 105217e6a |
| hex | 9c400000 |
2621440000 has 115 divisors (see below), whose sum is σ = 6551502067. Its totient is φ = 1048576000.
The previous prime is 2621439983. The next prime is 2621440009. The reversal of 2621440000 is 441262.
The square root of 2621440000 is 51200.
It is a perfect power (a square), and thus also a powerful number.
It can be written as a sum of positive squares in 2 ways, for example, as 205520896 + 2415919104 = 14336^2 + 49152^2 .
It is an ABA number since it can be written as A⋅BA, here for A=4, B=160.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 2621440000.
It is not an unprimeable number, because it can be changed into a prime (2621440009) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (5) of ones.
It is a polite number, since it can be written in 4 ways as a sum of consecutive naturals, for example, 524287998 + ... + 524288002.
Almost surely, 22621440000 is an apocalyptic number.
2621440000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
2621440000 is the 51200-th square number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 2621440000
2621440000 is an abundant number, since it is smaller than the sum of its proper divisors (3930062067).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2621440000 is an frugal number, since it uses more digits than its factorization.
2621440000 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 64 (or 7 counting only the distinct ones).
The product of its (nonzero) digits is 384, while the sum is 19.
The cubic root of 2621440000 is about 1378.8382016204.
Adding to 2621440000 its reverse (441262), we get a palindrome (2621881262).
The spelling of 2621440000 in words is "two billion, six hundred twenty-one million, four hundred forty thousand".
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