Base | Representation |
---|---|
bin | 11010001010101001… |
… | …010110011100001111 |
3 | 2200112001101120101221 |
4 | 122022221112130033 |
5 | 430020022240112 |
6 | 20523532344211 |
7 | 2013146130112 |
oct | 321251263417 |
9 | 80461346357 |
10 | 28095899407 |
11 | 10a08448084 |
12 | 5541315067 |
13 | 2859a56c64 |
14 | 15075d4579 |
15 | ae68aae07 |
hex | 68aa5670f |
28095899407 has 8 divisors (see below), whose sum is σ = 28422100800. Its totient is φ = 27769931904.
The previous prime is 28095899311. The next prime is 28095899411. The reversal of 28095899407 is 70499859082.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 28095899407 - 227 = 27961681679 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 (28095899417) 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, 189219 + ... + 303307.
It is an arithmetic number, because the mean of its divisors is an integer number (3552762600).
Almost surely, 228095899407 is an apocalyptic number.
28095899407 is a deficient number, since it is larger than the sum of its proper divisors (326201393).
28095899407 is a wasteful number, since it uses less digits than its factorization.
28095899407 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 116945.
The product of its (nonzero) digits is 13063680, while the sum is 61.
The spelling of 28095899407 in words is "twenty-eight billion, ninety-five million, eight hundred ninety-nine thousand, four hundred seven".
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