Base | Representation |
---|---|
bin | 11100010011000101… |
… | …111000110100000000 |
3 | 2220102120220002000121 |
4 | 130103011320310000 |
5 | 444212040102400 |
6 | 21543025430024 |
7 | 2123653634506 |
oct | 342305706400 |
9 | 86376802017 |
10 | 30385081600 |
11 | 1198264a595 |
12 | 5a7ba9b314 |
13 | 2b330b2233 |
14 | 1683648676 |
15 | bcc84221a |
hex | 713178d00 |
30385081600 has 54 divisors (see below), whose sum is σ = 75207840470. Its totient is φ = 12154030080.
The previous prime is 30385081543. The next prime is 30385081619. The reversal of 30385081600 is 618058303.
It is a happy number.
It can be written as a sum of positive squares in 3 ways, for example, as 292546816 + 30092534784 = 17104^2 + 173472^2 .
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2367435 + ... + 2380234.
Almost surely, 230385081600 is an apocalyptic number.
It is an amenable number.
30385081600 is an abundant number, since it is smaller than the sum of its proper divisors (44822758870).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30385081600 is an equidigital number, since it uses as much as digits as its factorization.
30385081600 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4747695 (or 4747676 counting only the distinct ones).
The product of its (nonzero) digits is 17280, while the sum is 34.
The spelling of 30385081600 in words is "thirty billion, three hundred eighty-five million, eighty-one thousand, six hundred".
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