Base | Representation |
---|---|
bin | 11010010000110110… |
… | …101000000111111111 |
3 | 2200210022100121120022 |
4 | 122100312220013333 |
5 | 430223202334012 |
6 | 20542132442355 |
7 | 2015552260553 |
oct | 322066500777 |
9 | 80708317508 |
10 | 28200043007 |
11 | 10a61209774 |
12 | 55701793bb |
13 | 28754bb7a6 |
14 | 1517383863 |
15 | b00acd472 |
hex | 690da81ff |
28200043007 has 16 divisors (see below), whose sum is σ = 29763824160. Its totient is φ = 26690342400.
The previous prime is 28200042967. The next prime is 28200043013. The reversal of 28200043007 is 70034000282.
It is a cyclic number.
It is not a de Polignac number, because 28200043007 - 26 = 28200042943 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 (28200043057) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105344 + ... + 259802.
It is an arithmetic number, because the mean of its divisors is an integer number (1860239010).
Almost surely, 228200043007 is an apocalyptic number.
28200043007 is a deficient number, since it is larger than the sum of its proper divisors (1563781153).
28200043007 is a wasteful number, since it uses less digits than its factorization.
28200043007 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 154634.
The product of its (nonzero) digits is 2688, while the sum is 26.
Adding to 28200043007 its reverse (70034000282), we get a palindrome (98234043289).
The spelling of 28200043007 in words is "twenty-eight billion, two hundred million, forty-three thousand, seven".
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