Base | Representation |
---|---|
bin | 111001010011… |
… | …1010101100101 |
3 | 2002112110201211 |
4 | 1302213111211 |
5 | 30142424131 |
6 | 2551551421 |
7 | 513245221 |
oct | 162472545 |
9 | 62473654 |
10 | 30045541 |
11 | 15a61729 |
12 | a08b571 |
13 | 62bc936 |
14 | 3dc1781 |
15 | 29875b1 |
hex | 1ca7565 |
30045541 has 8 divisors (see below), whose sum is σ = 31601664. Its totient is φ = 28526160.
The previous prime is 30045529. The next prime is 30045551. The reversal of 30045541 is 14554003.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 30045541 - 211 = 30043493 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30045551) 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, 7501 + ... + 10786.
It is an arithmetic number, because the mean of its divisors is an integer number (3950208).
Almost surely, 230045541 is an apocalyptic number.
30045541 is a gapful number since it is divisible by the number (31) formed by its first and last digit.
It is an amenable number.
30045541 is a deficient number, since it is larger than the sum of its proper divisors (1556123).
30045541 is a wasteful number, since it uses less digits than its factorization.
30045541 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 18371.
The product of its (nonzero) digits is 1200, while the sum is 22.
The square root of 30045541 is about 5481.3813040145. The cubic root of 30045541 is about 310.8804005199.
Adding to 30045541 its reverse (14554003), we get a palindrome (44599544).
The spelling of 30045541 in words is "thirty million, forty-five thousand, five hundred forty-one".
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