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52274297 = 188927673
BaseRepresentation
bin1100011101101…
…0010001111001
310122100210212002
43013122101321
5101340234142
65104230345
71203216125
oct307322171
9118323762
1052274297
11275644a9
121560b3b5
13aaa364a
146d2a585
1548c8a32
hex31da479

52274297 has 4 divisors (see below), whose sum is σ = 52303860. Its totient is φ = 52244736.

The previous prime is 52274273. The next prime is 52274309. The reversal of 52274297 is 79247225.

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 9096256 + 43178041 = 3016^2 + 6571^2 .

It is a cyclic number.

It is not a de Polignac number, because 52274297 - 28 = 52274041 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52274297.

It is not an unprimeable number, because it can be changed into a prime (52274207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11948 + ... + 15725.

It is an arithmetic number, because the mean of its divisors is an integer number (13075965).

Almost surely, 252274297 is an apocalyptic number.

It is an amenable number.

52274297 is a deficient number, since it is larger than the sum of its proper divisors (29563).

52274297 is a wasteful number, since it uses less digits than its factorization.

52274297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29562.

The product of its digits is 70560, while the sum is 38.

The square root of 52274297 is about 7230.0966106962. The cubic root of 52274297 is about 373.9062577834.

The spelling of 52274297 in words is "fifty-two million, two hundred seventy-four thousand, two hundred ninety-seven".

Divisors: 1 1889 27673 52274297