Base | Representation |
---|---|
bin | 111001010100… |
… | …0011100100000 |
3 | 2002112200221221 |
4 | 1302220130200 |
5 | 30143100310 |
6 | 2552024424 |
7 | 513264364 |
oct | 162503440 |
9 | 62480857 |
10 | 30050080 |
11 | 15a65085 |
12 | a092114 |
13 | 62c1a18 |
14 | 3dc32a4 |
15 | 2988ada |
hex | 1ca8720 |
30050080 has 48 divisors (see below), whose sum is σ = 71346744. Its totient is φ = 11960320.
The previous prime is 30050071. The next prime is 30050087. The reversal of 30050080 is 8005003.
It can be written as a sum of positive squares in 4 ways, for example, as 29986576 + 63504 = 5476^2 + 252^2 .
It is a Harshad number since it is a multiple of its sum of digits (16).
It is not an unprimeable number, because it can be changed into a prime (30050087) 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, 46560 + ... + 47200.
Almost surely, 230050080 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30050080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35673372).
30050080 is an abundant number, since it is smaller than the sum of its proper divisors (41296664).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30050080 is a wasteful number, since it uses less digits than its factorization.
30050080 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 949 (or 941 counting only the distinct ones).
The product of its (nonzero) digits is 120, while the sum is 16.
The square root of 30050080 is about 5481.7953263507. The cubic root of 30050080 is about 310.8960547017.
Adding to 30050080 its reverse (8005003), we get a palindrome (38055083).
The spelling of 30050080 in words is "thirty million, fifty thousand, eighty".
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