Base | Representation |
---|---|
bin | 11010011010011010… |
… | …010001110101100101 |
3 | 2201012111001202211212 |
4 | 122122122101311211 |
5 | 431040224240340 |
6 | 21010101241205 |
7 | 2022540166553 |
oct | 323232216545 |
9 | 81174052755 |
10 | 28360383845 |
11 | 11033774162 |
12 | 55b5a03205 |
13 | 289c79b421 |
14 | 15307a0bd3 |
15 | b0ec01a65 |
hex | 69a691d65 |
28360383845 has 8 divisors (see below), whose sum is σ = 34071007776. Its totient is φ = 22662608976.
The previous prime is 28360383833. The next prime is 28360383847. The reversal of 28360383845 is 54838306382.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-28360383845 is a prime.
It is a super-2 number, since 2×283603838452 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 28360383793 and 28360383802.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28360383847) 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, 3207407 + ... + 3216236.
It is an arithmetic number, because the mean of its divisors is an integer number (4258875972).
Almost surely, 228360383845 is an apocalyptic number.
It is an amenable number.
28360383845 is a deficient number, since it is larger than the sum of its proper divisors (5710623931).
28360383845 is an equidigital number, since it uses as much as digits as its factorization.
28360383845 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6424531.
The product of its (nonzero) digits is 3317760, while the sum is 50.
The spelling of 28360383845 in words is "twenty-eight billion, three hundred sixty million, three hundred eighty-three thousand, eight hundred forty-five".
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