Base | Representation |
---|---|
bin | 1000111001000110000… |
… | …00100011111111111100 |
3 | 1002012121220122120002000 |
4 | 10130203000203333330 |
5 | 20001211141344103 |
6 | 352205240502300 |
7 | 31034214250131 |
oct | 4344300437774 |
9 | 1065556576060 |
10 | 305530028028 |
11 | 1086358101a5 |
12 | 4b26947a990 |
13 | 22a71727244 |
14 | 10b05774588 |
15 | 7e32e10aa3 |
hex | 4723023ffc |
305530028028 has 48 divisors (see below), whose sum is σ = 792165749760. Its totient is φ = 101836803312.
The previous prime is 305530028021. The next prime is 305530028071. The reversal of 305530028028 is 820820035503.
305530028028 is a `hidden beast` number, since 3 + 0 + 55 + 300 + 280 + 28 = 666.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a junction number, because it is equal to n+sod(n) for n = 305530027983 and 305530028001.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (305530028021) 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, 1775701 + ... + 1940147.
It is an arithmetic number, because the mean of its divisors is an integer number (16503453120).
Almost surely, 2305530028028 is an apocalyptic number.
It is an amenable number.
305530028028 is an abundant number, since it is smaller than the sum of its proper divisors (486635721732).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
305530028028 is a wasteful number, since it uses less digits than its factorization.
305530028028 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 181663 (or 181655 counting only the distinct ones).
The product of its (nonzero) digits is 57600, while the sum is 36.
The spelling of 305530028028 in words is "three hundred five billion, five hundred thirty million, twenty-eight thousand, twenty-eight".
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