Base | Representation |
---|---|
bin | 111010010111… |
… | …1111110011110 |
3 | 2010120220110110 |
4 | 1310233332132 |
5 | 30313331324 |
6 | 3011550450 |
7 | 521066013 |
oct | 164577636 |
9 | 63526413 |
10 | 30605214 |
11 | 16304172 |
12 | a2bb426 |
13 | 64575c3 |
14 | 40c970a |
15 | 2a48329 |
hex | 1d2ff9e |
30605214 has 16 divisors (see below), whose sum is σ = 61805952. Its totient is φ = 10102488.
The previous prime is 30605213. The next prime is 30605227. The reversal of 30605214 is 41250603.
It is a happy number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30605213) 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, 24144 + ... + 25379.
It is an arithmetic number, because the mean of its divisors is an integer number (3862872).
Almost surely, 230605214 is an apocalyptic number.
30605214 is an abundant number, since it is smaller than the sum of its proper divisors (31200738).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30605214 is a wasteful number, since it uses less digits than its factorization.
30605214 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 49631.
The product of its (nonzero) digits is 720, while the sum is 21.
The square root of 30605214 is about 5532.1979357214. The cubic root of 30605214 is about 312.7988445764.
Adding to 30605214 its reverse (41250603), we get a palindrome (71855817).
The spelling of 30605214 in words is "thirty million, six hundred five thousand, two hundred fourteen".
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