Search a number
-
+
52756543 = 78390803
BaseRepresentation
bin1100100101000…
…0000000111111
310200021022101001
43021100000333
5102001202133
65122431131
71210265110
oct311200077
9120238331
1052756543
1127863854
12158024a7
13ac11cb8
147014207
15497187d
hex325003f

52756543 has 8 divisors (see below), whose sum is σ = 61020288. Its totient is φ = 44674584.

The previous prime is 52756507. The next prime is 52756567. The reversal of 52756543 is 34565725.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 52756543 - 29 = 52756031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52756573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44821 + ... + 45982.

It is an arithmetic number, because the mean of its divisors is an integer number (7627536).

Almost surely, 252756543 is an apocalyptic number.

52756543 is a deficient number, since it is larger than the sum of its proper divisors (8263745).

52756543 is an equidigital number, since it uses as much as digits as its factorization.

52756543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90893.

The product of its digits is 126000, while the sum is 37.

The square root of 52756543 is about 7263.3699478961. The cubic root of 52756543 is about 375.0525390091.

The spelling of 52756543 in words is "fifty-two million, seven hundred fifty-six thousand, five hundred forty-three".

Divisors: 1 7 83 581 90803 635621 7536649 52756543