Base | Representation |
---|---|
bin | 111001010100… |
… | …0100110101010 |
3 | 2002112201212000 |
4 | 1302220212222 |
5 | 30143110410 |
6 | 2552031430 |
7 | 513266313 |
oct | 162504652 |
9 | 62481760 |
10 | 30050730 |
11 | 15a65616 |
12 | a092576 |
13 | 62c20c8 |
14 | 3dc360a |
15 | 2988dc0 |
hex | 1ca89aa |
30050730 has 64 divisors (see below), whose sum is σ = 84862080. Its totient is φ = 7540992.
The previous prime is 30050717. The next prime is 30050743. The reversal of 30050730 is 3705003.
It is an interprime number because it is at equal distance from previous prime (30050717) and next prime (30050743).
It is a Harshad number since it is a multiple of its sum of digits (18).
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1317 + ... + 7863.
It is an arithmetic number, because the mean of its divisors is an integer number (1325970).
Almost surely, 230050730 is an apocalyptic number.
30050730 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 30050730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42431040).
30050730 is an abundant number, since it is smaller than the sum of its proper divisors (54811350).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30050730 is a wasteful number, since it uses less digits than its factorization.
30050730 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6580 (or 6574 counting only the distinct ones).
The product of its (nonzero) digits is 315, while the sum is 18.
The square root of 30050730 is about 5481.8546131761. The cubic root of 30050730 is about 310.8982963039.
Adding to 30050730 its reverse (3705003), we get a palindrome (33755733).
The spelling of 30050730 in words is "thirty million, fifty thousand, seven hundred thirty".
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