Base | Representation |
---|---|
bin | 111010011110… |
… | …1110111000000 |
3 | 2010200210110121 |
4 | 1310331313000 |
5 | 30322141310 |
6 | 3013110024 |
7 | 521423551 |
oct | 164756700 |
9 | 63623417 |
10 | 30662080 |
11 | 16342969 |
12 | a328314 |
13 | 6477457 |
14 | 4102328 |
15 | 2a5a0da |
hex | 1d3ddc0 |
30662080 has 28 divisors (see below), whose sum is σ = 73014840. Its totient is φ = 12264704.
The previous prime is 30662063. The next prime is 30662083. The reversal of 30662080 is 8026603.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30662083) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47590 + ... + 48229.
Almost surely, 230662080 is an apocalyptic number.
It is an amenable number.
30662080 is an abundant number, since it is smaller than the sum of its proper divisors (42352760).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30662080 is an equidigital number, since it uses as much as digits as its factorization.
30662080 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 95836 (or 95826 counting only the distinct ones).
The product of its (nonzero) digits is 1728, while the sum is 25.
The square root of 30662080 is about 5537.3350991248. The cubic root of 30662080 is about 312.9924566158.
Adding to 30662080 its reverse (8026603), we get a palindrome (38688683).
The spelling of 30662080 in words is "thirty million, six hundred sixty-two thousand, eighty".
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