Base | Representation |
---|---|
bin | 11010100001111100… |
… | …010100101001111111 |
3 | 2201112021211202222100 |
4 | 122201330110221333 |
5 | 431320101430144 |
6 | 21030413520143 |
7 | 2025633240525 |
oct | 324174245177 |
9 | 81467752870 |
10 | 28486748799 |
11 | 11099033003 |
12 | 56301a3053 |
13 | 28bca134a2 |
14 | 1543496315 |
15 | b1ad63269 |
hex | 6a1f14a7f |
28486748799 has 6 divisors (see below), whose sum is σ = 41147526056. Its totient is φ = 18991165860.
The previous prime is 28486748789. The next prime is 28486748839. The reversal of 28486748799 is 99784768482.
28486748799 is a `hidden beast` number, since 2 + 8 + 486 + 74 + 8 + 79 + 9 = 666.
It is not a de Polignac number, because 28486748799 - 215 = 28486716031 is a prime.
It is a super-2 number, since 2×284867487992 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28486748729) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1582597147 + ... + 1582597164.
Almost surely, 228486748799 is an apocalyptic number.
28486748799 is a deficient number, since it is larger than the sum of its proper divisors (12660777257).
28486748799 is a wasteful number, since it uses less digits than its factorization.
28486748799 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3165194317 (or 3165194314 counting only the distinct ones).
The product of its digits is 390168576, while the sum is 72.
The spelling of 28486748799 in words is "twenty-eight billion, four hundred eighty-six million, seven hundred forty-eight thousand, seven hundred ninety-nine".
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