Base | Representation |
---|---|
bin | 111010001111… |
… | …0001110111101 |
3 | 2010110012202212 |
4 | 1310132032331 |
5 | 30304020131 |
6 | 3010230205 |
7 | 520344104 |
oct | 164361675 |
9 | 63405685 |
10 | 30532541 |
11 | 16264606 |
12 | a285365 |
13 | 64304c0 |
14 | 40ab03b |
15 | 2a31a2b |
hex | 1d1e3bd |
30532541 has 8 divisors (see below), whose sum is σ = 32968824. Its totient is φ = 28108800.
The previous prime is 30532519. The next prime is 30532573. The reversal of 30532541 is 14523503.
It can be written as a sum of positive squares in 4 ways, for example, as 16168441 + 14364100 = 4021^2 + 3790^2 .
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 30532541 - 210 = 30531517 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 (30532501) 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, 2285 + ... + 8141.
It is an arithmetic number, because the mean of its divisors is an integer number (4121103).
Almost surely, 230532541 is an apocalyptic number.
It is an amenable number.
30532541 is a deficient number, since it is larger than the sum of its proper divisors (2436283).
30532541 is a wasteful number, since it uses less digits than its factorization.
30532541 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6271.
The product of its (nonzero) digits is 1800, while the sum is 23.
The square root of 30532541 is about 5525.6258469064. The cubic root of 30532541 is about 312.5510649351.
The spelling of 30532541 in words is "thirty million, five hundred thirty-two thousand, five hundred forty-one".
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