Base | Representation |
---|---|
bin | 101000110010100001100… |
… | …110111000110001110101 |
3 | 100220222002222110200101211 |
4 | 220302201212320301311 |
5 | 331411101140042210 |
6 | 5543405540521421 |
7 | 406340460622354 |
oct | 50624146706165 |
9 | 10828088420354 |
10 | 2803030002805 |
11 | 9908383a852a |
12 | 3932b50b0271 |
13 | 17442b19b5c6 |
14 | 9994b3cb99b |
15 | 4cda72dd38a |
hex | 28ca19b8c75 |
2803030002805 has 8 divisors (see below), whose sum is σ = 3396939330744. Its totient is φ = 2220221784000.
The previous prime is 2803030002803. The next prime is 2803030002809. The reversal of 2803030002805 is 5082000303082.
It can be written as a sum of positive squares in 4 ways, for example, as 725300909316 + 2077729093489 = 851646^2 + 1441433^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 2803030002805 - 21 = 2803030002803 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2803030002803) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2775276726 + ... + 2775277735.
It is an arithmetic number, because the mean of its divisors is an integer number (424617416343).
Almost surely, 22803030002805 is an apocalyptic number.
It is an amenable number.
2803030002805 is a deficient number, since it is larger than the sum of its proper divisors (593909327939).
2803030002805 is a wasteful number, since it uses less digits than its factorization.
2803030002805 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5550554567.
The product of its (nonzero) digits is 11520, while the sum is 31.
Adding to 2803030002805 its reverse (5082000303082), we get a palindrome (7885030305887).
The spelling of 2803030002805 in words is "two trillion, eight hundred three billion, thirty million, two thousand, eight hundred five".
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