Base | Representation |
---|---|
bin | 11010001100101100… |
… | …010011111100101111 |
3 | 2200121102222202012201 |
4 | 122030230103330233 |
5 | 430102314330223 |
6 | 20531200242331 |
7 | 2014044003355 |
oct | 321454237457 |
9 | 80542882181 |
10 | 28130230063 |
11 | 10a25866221 |
12 | 55509103a7 |
13 | 2863bb7160 |
14 | 150bdad7d5 |
15 | ae98dcead |
hex | 68cb13f2f |
28130230063 has 16 divisors (see below), whose sum is σ = 31650575040. Its totient is φ = 24806479104.
The previous prime is 28130230049. The next prime is 28130230067. The reversal of 28130230063 is 36003203182.
It is a cyclic number.
It is not a de Polignac number, because 28130230063 - 213 = 28130221871 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 (28130230067) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183745 + ... + 300037.
It is an arithmetic number, because the mean of its divisors is an integer number (1978160940).
Almost surely, 228130230063 is an apocalyptic number.
28130230063 is a gapful number since it is divisible by the number (23) formed by its first and last digit.
28130230063 is a deficient number, since it is larger than the sum of its proper divisors (3520344977).
28130230063 is a wasteful number, since it uses less digits than its factorization.
28130230063 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 117138.
The product of its (nonzero) digits is 5184, while the sum is 28.
The spelling of 28130230063 in words is "twenty-eight billion, one hundred thirty million, two hundred thirty thousand, sixty-three".
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