Base | Representation |
---|---|
bin | 111001010011… |
… | …0010000000011 |
3 | 2002112020122000 |
4 | 1302212100003 |
5 | 30142303331 |
6 | 2551515043 |
7 | 513226233 |
oct | 162462003 |
9 | 62466560 |
10 | 30041091 |
11 | 15a59353 |
12 | a088a83 |
13 | 62ba8c2 |
14 | 3dbdcc3 |
15 | 29860e6 |
hex | 1ca6403 |
30041091 has 16 divisors (see below), whose sum is σ = 47124000. Its totient is φ = 18849024.
The previous prime is 30041087. The next prime is 30041101. The reversal of 30041091 is 19014003.
It is not a de Polignac number, because 30041091 - 22 = 30041087 is a prime.
It is a super-3 number, since 3×300410913 (a number of 23 digits) contains 333 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30041021) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32266 + ... + 33183.
It is an arithmetic number, because the mean of its divisors is an integer number (2945250).
Almost surely, 230041091 is an apocalyptic number.
30041091 is a deficient number, since it is larger than the sum of its proper divisors (17082909).
30041091 is a wasteful number, since it uses less digits than its factorization.
30041091 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 65475 (or 65469 counting only the distinct ones).
The product of its (nonzero) digits is 108, while the sum is 18.
The square root of 30041091 is about 5480.9753694028. The cubic root of 30041091 is about 310.8650517522.
Adding to 30041091 its reverse (19014003), we get a palindrome (49055094).
It can be divided in two parts, 3004 and 1091, that added together give a triangular number (4095 = T90).
The spelling of 30041091 in words is "thirty million, forty-one thousand, ninety-one".
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