Base | Representation |
---|---|
bin | 1001111111111000… |
… | …0010111101001101 |
3 | 20221001010022121200 |
4 | 2133332002331031 |
5 | 20444030424011 |
6 | 1122152020113 |
7 | 123336166233 |
oct | 23776027515 |
9 | 6831108550 |
10 | 2683842381 |
11 | 1157a60560 |
12 | 62a991639 |
13 | 33a04a21c |
14 | 1b6628953 |
15 | 10a942856 |
hex | 9ff82f4d |
2683842381 has 24 divisors (see below), whose sum is σ = 4374920160. Its totient is φ = 1570480800.
The previous prime is 2683842379. The next prime is 2683842389. The reversal of 2683842381 is 1832483862.
2683842381 is a `hidden beast` number, since 268 + 3 + 8 + 4 + 2 + 381 = 666.
It is not a de Polignac number, because 2683842381 - 21 = 2683842379 is a prime.
It is a super-2 number, since 2×26838423812 = 14406019852103498322, which contains 22 as substring.
It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2683842389) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 464535 + ... + 470276.
It is an arithmetic number, because the mean of its divisors is an integer number (182288340).
Almost surely, 22683842381 is an apocalyptic number.
It is an amenable number.
2683842381 is a deficient number, since it is larger than the sum of its proper divisors (1691077779).
2683842381 is a wasteful number, since it uses less digits than its factorization.
2683842381 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 934857 (or 934854 counting only the distinct ones).
The product of its digits is 442368, while the sum is 45.
The square root of 2683842381 is about 51805.8141621189. The cubic root of 2683842381 is about 1389.6934232344.
The spelling of 2683842381 in words is "two billion, six hundred eighty-three million, eight hundred forty-two thousand, three hundred eighty-one".
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