Base | Representation |
---|---|
bin | 11100011011101111… |
… | …110001001010001110 |
3 | 2220210201002211002011 |
4 | 130123233301022032 |
5 | 1000011222344110 |
6 | 22005253451434 |
7 | 2130366036640 |
oct | 343357611216 |
9 | 86721084064 |
10 | 30530278030 |
11 | 11a4760083a |
12 | 5b00640b7a |
13 | 2b571bb895 |
14 | 1698a42890 |
15 | bda47348a |
hex | 71bbf128e |
30530278030 has 32 divisors (see below), whose sum is σ = 63299690496. Its totient is φ = 10385099424.
The previous prime is 30530277991. The next prime is 30530278033. The reversal of 30530278030 is 3087203503.
It is a junction number, because it is equal to n+sod(n) for n = 30530277983 and 30530278001.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30530278033) 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, 1708224 + ... + 1726003.
It is an arithmetic number, because the mean of its divisors is an integer number (1978115328).
Almost surely, 230530278030 is an apocalyptic number.
30530278030 is an abundant number, since it is smaller than the sum of its proper divisors (32769412466).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30530278030 is a wasteful number, since it uses less digits than its factorization.
30530278030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3434368.
The product of its (nonzero) digits is 15120, while the sum is 31.
The spelling of 30530278030 in words is "thirty billion, five hundred thirty million, two hundred seventy-eight thousand, thirty".
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