Base | Representation |
---|---|
bin | 111001111011… |
… | …0110100010010 |
3 | 2010011000022012 |
4 | 1303312310102 |
5 | 30233333330 |
6 | 3002542522 |
7 | 516102311 |
oct | 163666422 |
9 | 63130265 |
10 | 30371090 |
11 | 16164282 |
12 | a207a42 |
13 | 63a4b79 |
14 | 4068278 |
15 | 29edc95 |
hex | 1cf6d12 |
30371090 has 8 divisors (see below), whose sum is σ = 54667980. Its totient is φ = 12148432.
The previous prime is 30371087. The next prime is 30371093. The reversal of 30371090 is 9017303.
It is an interprime number because it is at equal distance from previous prime (30371087) and next prime (30371093).
It can be written as a sum of positive squares in 2 ways, for example, as 30019441 + 351649 = 5479^2 + 593^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (30371093) 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, 1518545 + ... + 1518564.
Almost surely, 230371090 is an apocalyptic number.
30371090 is a deficient number, since it is larger than the sum of its proper divisors (24296890).
30371090 is a wasteful number, since it uses less digits than its factorization.
30371090 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3037116.
The product of its (nonzero) digits is 567, while the sum is 23.
The square root of 30371090 is about 5510.9971874426. The cubic root of 30371090 is about 311.9991850187. Note that the first 3 decimals are identical.
Adding to 30371090 its reverse (9017303), we get a palindrome (39388393).
The spelling of 30371090 in words is "thirty million, three hundred seventy-one thousand, ninety".
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