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52340161 = 173078833
BaseRepresentation
bin1100011110101…
…0010111000001
310122111011012111
43013222113001
5101344341121
65105455321
71203612136
oct307522701
9118434174
1052340161
11275a9a35
1215641541
13aac7613
146d4658d
1548dd2e1
hex31ea5c1

52340161 has 4 divisors (see below), whose sum is σ = 55419012. Its totient is φ = 49261312.

The previous prime is 52340081. The next prime is 52340177. The reversal of 52340161 is 16104325.

52340161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 17305600 + 35034561 = 4160^2 + 5919^2 .

It is a cyclic number.

It is not a de Polignac number, because 52340161 - 29 = 52339649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52340461) 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 3 ways as a sum of consecutive naturals, for example, 1539400 + ... + 1539433.

It is an arithmetic number, because the mean of its divisors is an integer number (13854753).

Almost surely, 252340161 is an apocalyptic number.

It is an amenable number.

52340161 is a deficient number, since it is larger than the sum of its proper divisors (3078851).

52340161 is a wasteful number, since it uses less digits than its factorization.

52340161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3078850.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 52340161 is about 7234.6500260897. The cubic root of 52340161 is about 374.0632286552.

Adding to 52340161 its reverse (16104325), we get a palindrome (68444486).

The spelling of 52340161 in words is "fifty-two million, three hundred forty thousand, one hundred sixty-one".

Divisors: 1 17 3078833 52340161