| Base | Representation |
|---|---|
| bin | 1010010111010101… |
| … | …1100000100011101 |
| 3 | 21011220021220110100 |
| 4 | 2211311130010131 |
| 5 | 21144223433440 |
| 6 | 1140025131313 |
| 7 | 125642504556 |
| oct | 24565340435 |
| 9 | 7156256410 |
| 10 | 2782249245 |
| 11 | 11a8564046 |
| 12 | 657929b39 |
| 13 | 354553839 |
| 14 | 1c572332d |
| 15 | 1143d0230 |
| hex | a5d5c11d |
2782249245 has 12 divisors (see below), whose sum is σ = 4822565436. Its totient is φ = 1483866240.
The previous prime is 2782249243. The next prime is 2782249259. The reversal of 2782249245 is 5429422872.
2782249245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 2 ways, for example, as 2121707844 + 660541401 = 46062^2 + 25701^2 .
It is not a de Polignac number, because 2782249245 - 21 = 2782249243 is a prime.
It is a super-2 number, since 2×27822492452 = 15481821722606140050, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 61827761 = 2782249245 / (2 + 7 + 8 + 2 + 2 + 4 + 9 + 2 + 4 + 5).
It is a self number, because there is not a number n which added to its sum of digits gives 2782249245.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2782249243) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30913836 + ... + 30913925.
It is an arithmetic number, because the mean of its divisors is an integer number (401880453).
Almost surely, 22782249245 is an apocalyptic number.
It is an amenable number.
2782249245 is a deficient number, since it is larger than the sum of its proper divisors (2040316191).
2782249245 is a wasteful number, since it uses less digits than its factorization.
2782249245 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 61827772 (or 61827769 counting only the distinct ones).
The product of its digits is 645120, while the sum is 45.
The square root of 2782249245 is about 52747.0306747214. The cubic root of 2782249245 is about 1406.4749807746.
The spelling of 2782249245 in words is "two billion, seven hundred eighty-two million, two hundred forty-nine thousand, two hundred forty-five".
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