Search a number
-
+
52448197 = 71738707
BaseRepresentation
bin1100100000010…
…0101111000101
310122200122101211
43020010233011
5101411320242
65112051421
71204542124
oct310045705
9118618354
1052448197
112767311a
1215693b71
13ab34849
146d73abb
154910317
hex3204bc5

52448197 has 4 divisors (see below), whose sum is σ = 53186976. Its totient is φ = 51709420.

The previous prime is 52448183. The next prime is 52448219. The reversal of 52448197 is 79184425.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52448197 - 219 = 51923909 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52448117) 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 3 ways as a sum of consecutive naturals, for example, 369283 + ... + 369424.

It is an arithmetic number, because the mean of its divisors is an integer number (13296744).

Almost surely, 252448197 is an apocalyptic number.

It is an amenable number.

52448197 is a deficient number, since it is larger than the sum of its proper divisors (738779).

52448197 is an equidigital number, since it uses as much as digits as its factorization.

52448197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738778.

The product of its digits is 80640, while the sum is 40.

The square root of 52448197 is about 7242.1127442204. The cubic root of 52448197 is about 374.3204213531.

The spelling of 52448197 in words is "fifty-two million, four hundred forty-eight thousand, one hundred ninety-seven".

Divisors: 1 71 738707 52448197