Base | Representation |
---|---|
bin | 1001111111110111… |
… | …0001010001011101 |
3 | 20221000222122021000 |
4 | 2133331301101131 |
5 | 20444021114244 |
6 | 1122150300513 |
7 | 123335445120 |
oct | 23775612135 |
9 | 6830878230 |
10 | 2683769949 |
11 | 1157a110a3 |
12 | 62a957739 |
13 | 33a023273 |
14 | 1b660a3b7 |
15 | 10a92b169 |
hex | 9ff7145d |
2683769949 has 32 divisors (see below), whose sum is σ = 4549975040. Its totient is φ = 1531549296.
The previous prime is 2683769947. The next prime is 2683769953. The reversal of 2683769949 is 9499673862.
It is not a de Polignac number, because 2683769949 - 21 = 2683769947 is a prime.
It is a super-3 number, since 3×26837699493 (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a Harshad number since it is a multiple of its sum of digits (63).
It is a Duffinian number.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2683769941) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 139722 + ... + 157764.
It is an arithmetic number, because the mean of its divisors is an integer number (142186720).
Almost surely, 22683769949 is an apocalyptic number.
It is an amenable number.
2683769949 is a deficient number, since it is larger than the sum of its proper divisors (1866205091).
2683769949 is a wasteful number, since it uses less digits than its factorization.
2683769949 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 18846 (or 18840 counting only the distinct ones).
The product of its digits is 35271936, while the sum is 63.
The square root of 2683769949 is about 51805.1150852886. The cubic root of 2683769949 is about 1389.6809213602.
The spelling of 2683769949 in words is "two billion, six hundred eighty-three million, seven hundred sixty-nine thousand, nine hundred forty-nine".
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