Base | Representation |
---|---|
bin | 1100101000011… |
… | …0101101100101 |
3 | 10200200200200202 |
4 | 3022012231211 |
5 | 102030334311 |
6 | 5131320245 |
7 | 1212220223 |
oct | 312065545 |
9 | 120620622 |
10 | 52980581 |
11 | 279a7105 |
12 | 158b0085 |
13 | ac8cc74 |
14 | 7071b13 |
15 | 49b7e3b |
hex | 3286b65 |
52980581 has 8 divisors (see below), whose sum is σ = 54829824. Its totient is φ = 51140160.
The previous prime is 52980541. The next prime is 52980611. The reversal of 52980581 is 18508925.
52980581 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-52980581 is a prime.
It is a super-2 number, since 2×529805812 = 5613883926195122, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (52980511) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11450 + ... + 15396.
It is an arithmetic number, because the mean of its divisors is an integer number (6853728).
Almost surely, 252980581 is an apocalyptic number.
It is an amenable number.
52980581 is a deficient number, since it is larger than the sum of its proper divisors (1849243).
52980581 is a wasteful number, since it uses less digits than its factorization.
52980581 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4411.
The product of its (nonzero) digits is 28800, while the sum is 38.
The square root of 52980581 is about 7278.7760646966. The cubic root of 52980581 is about 375.5826935205.
The spelling of 52980581 in words is "fifty-two million, nine hundred eighty thousand, five hundred eighty-one".
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