Base | Representation |
---|---|
bin | 111001011010… |
… | …0111101111011 |
3 | 2002122022022121 |
4 | 1302310331323 |
5 | 30201220441 |
6 | 2553102111 |
7 | 513600046 |
oct | 162647573 |
9 | 62568277 |
10 | 30101371 |
11 | 15a9a673 |
12 | a0b7937 |
13 | 630c181 |
14 | 3dd7c5d |
15 | 2998dd1 |
hex | 1cb4f7b |
30101371 has 4 divisors (see below), whose sum is σ = 30128632. Its totient is φ = 30074112.
The previous prime is 30101359. The next prime is 30101381. The reversal of 30101371 is 17310103.
It is a happy number.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17310103 = 3863 ⋅4481.
It is a cyclic number.
It is not a de Polignac number, because 30101371 - 211 = 30099323 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30101321) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11901 + ... + 14206.
It is an arithmetic number, because the mean of its divisors is an integer number (7532158).
Almost surely, 230101371 is an apocalyptic number.
30101371 is a deficient number, since it is larger than the sum of its proper divisors (27261).
30101371 is a wasteful number, since it uses less digits than its factorization.
30101371 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 27260.
The product of its (nonzero) digits is 63, while the sum is 16.
The square root of 30101371 is about 5486.4716348488. The cubic root of 30101371 is about 311.0728385412.
Adding to 30101371 its reverse (17310103), we get a palindrome (47411474).
The spelling of 30101371 in words is "thirty million, one hundred one thousand, three hundred seventy-one".
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