Base | Representation |
---|---|
bin | 11100000010011011… |
… | …000000010010011000 |
3 | 2212201002122000021000 |
4 | 130002123000102120 |
5 | 443123440421233 |
6 | 21455155145000 |
7 | 2114016500541 |
oct | 340233002230 |
9 | 85632560230 |
10 | 30105404568 |
11 | 11849797048 |
12 | 5a022a5160 |
13 | 2aba17b875 |
14 | 16584454c8 |
15 | bb2ee9d13 |
hex | 7026c0498 |
30105404568 has 32 divisors (see below), whose sum is σ = 83626124400. Its totient is φ = 10035134784.
The previous prime is 30105404561. The next prime is 30105404569. The reversal of 30105404568 is 86540450103.
It is a happy number.
30105404568 is a `hidden beast` number, since 3 + 0 + 10 + 540 + 45 + 68 = 666.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30105404561) 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, 69688221 + ... + 69688652.
Almost surely, 230105404568 is an apocalyptic number.
It is an amenable number.
30105404568 is an abundant number, since it is smaller than the sum of its proper divisors (53520719832).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30105404568 is a wasteful number, since it uses less digits than its factorization.
30105404568 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 139376888 (or 139376878 counting only the distinct ones).
The product of its (nonzero) digits is 57600, while the sum is 36.
The spelling of 30105404568 in words is "thirty billion, one hundred five million, four hundred four thousand, five hundred sixty-eight".
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