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52720043 = 176150839
BaseRepresentation
bin1100100100011…
…1000110101011
310200012110022012
43021013012223
5101444020133
65121550135
71210053515
oct311070653
9120173265
1052720043
1127839392
12157a534b
13abcb4bc
147004bb5
154965b48
hex32471ab

52720043 has 8 divisors (see below), whose sum is σ = 56737440. Its totient is φ = 48804480.

The previous prime is 52720039. The next prime is 52720049. The reversal of 52720043 is 34002725.

52720043 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 not a de Polignac number, because 52720043 - 22 = 52720039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52720049) 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, 24383 + ... + 26456.

It is an arithmetic number, because the mean of its divisors is an integer number (7092180).

Almost surely, 252720043 is an apocalyptic number.

52720043 is a deficient number, since it is larger than the sum of its proper divisors (4017397).

52720043 is a wasteful number, since it uses less digits than its factorization.

52720043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50917.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 52720043 is about 7260.8569053521. The cubic root of 52720043 is about 374.9660247738.

Adding to 52720043 its reverse (34002725), we get a palindrome (86722768).

The spelling of 52720043 in words is "fifty-two million, seven hundred twenty thousand, forty-three".

Divisors: 1 17 61 1037 50839 864263 3101179 52720043