Base | Representation |
---|---|
bin | 111001100100… |
… | …1111100100110 |
3 | 2002210200012020 |
4 | 1303021330212 |
5 | 30211443202 |
6 | 2555004010 |
7 | 514405425 |
oct | 163117446 |
9 | 62720166 |
10 | 30187302 |
11 | 16049192 |
12 | a139606 |
13 | 633c312 |
14 | 401b2bc |
15 | 29b45bc |
hex | 1cc9f26 |
30187302 has 8 divisors (see below), whose sum is σ = 60374616. Its totient is φ = 10062432.
The previous prime is 30187249. The next prime is 30187303. The reversal of 30187302 is 20378103.
It is a sphenic number, since it is the product of 3 distinct primes.
30187302 is an admirable number.
It is a super-2 number, since 2×301873022 = 1822546404078408, which contains 22 as substring.
It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30187303) 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, 2515603 + ... + 2515614.
It is an arithmetic number, because the mean of its divisors is an integer number (7546827).
Almost surely, 230187302 is an apocalyptic number.
30187302 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30187302 is a wasteful number, since it uses less digits than its factorization.
30187302 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5031222.
The product of its (nonzero) digits is 1008, while the sum is 24.
The square root of 30187302 is about 5494.2972253055. The cubic root of 30187302 is about 311.3685659798.
The spelling of 30187302 in words is "thirty million, one hundred eighty-seven thousand, three hundred two".
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