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52420201 = 60898609
BaseRepresentation
bin1100011111110…
…1111001101001
310122122012222221
43013331321221
5101404421301
65111314041
71204364401
oct307757151
9118565887
1052420201
1127654089
121567b921
13ab24b92
146d67801
154906da1
hex31fde69

52420201 has 4 divisors (see below), whose sum is σ = 52434900. Its totient is φ = 52405504.

The previous prime is 52420189. The next prime is 52420217. The reversal of 52420201 is 10202425.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 12110400 + 40309801 = 3480^2 + 6349^2 .

It is a cyclic number.

It is not a de Polignac number, because 52420201 - 25 = 52420169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52420241) 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, 1785 + ... + 10393.

It is an arithmetic number, because the mean of its divisors is an integer number (13108725).

Almost surely, 252420201 is an apocalyptic number.

It is an amenable number.

52420201 is a deficient number, since it is larger than the sum of its proper divisors (14699).

52420201 is an equidigital number, since it uses as much as digits as its factorization.

52420201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14698.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 52420201 is about 7240.1796248436. The cubic root of 52420201 is about 374.2538074352.

Adding to 52420201 its reverse (10202425), we get a palindrome (62622626).

The spelling of 52420201 in words is "fifty-two million, four hundred twenty thousand, two hundred one".

Divisors: 1 6089 8609 52420201