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52031743 = 53981731
BaseRepresentation
bin1100011001111…
…1000011111111
310121220111010121
43012133003333
5101310003433
65055115411
71201156021
oct306370377
9117814117
1052031743
1127409245
1215512b67
13aa1a11a
146ca6011
15487bc2d
hex319f0ff

52031743 has 4 divisors (see below), whose sum is σ = 53013528. Its totient is φ = 51049960.

The previous prime is 52031741. The next prime is 52031767. The reversal of 52031743 is 34713025.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52031743 - 21 = 52031741 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52031741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 490813 + ... + 490918.

It is an arithmetic number, because the mean of its divisors is an integer number (13253382).

Almost surely, 252031743 is an apocalyptic number.

52031743 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

52031743 is a deficient number, since it is larger than the sum of its proper divisors (981785).

52031743 is an equidigital number, since it uses as much as digits as its factorization.

52031743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 981784.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 52031743 is about 7213.3031961786. The cubic root of 52031743 is about 373.3270496569.

Adding to 52031743 its reverse (34713025), we get a palindrome (86744768).

The spelling of 52031743 in words is "fifty-two million, thirty-one thousand, seven hundred forty-three".

Divisors: 1 53 981731 52031743