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52408297 = 173082841
BaseRepresentation
bin1100011111101…
…0111111101001
310122121121200001
43013322333221
5101404031142
65111143001
71204314604
oct307727751
9118547601
1052408297
1127646147
1215674a61
13ab1c636
146d6333b
1549035b7
hex31fafe9

52408297 has 4 divisors (see below), whose sum is σ = 55491156. Its totient is φ = 49325440.

The previous prime is 52408267. The next prime is 52408309. The reversal of 52408297 is 79280425.

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 29855296 + 22553001 = 5464^2 + 4749^2 .

It is a cyclic number.

It is not a de Polignac number, because 52408297 - 219 = 51884009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52408207) 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, 1541404 + ... + 1541437.

It is an arithmetic number, because the mean of its divisors is an integer number (13872789).

Almost surely, 252408297 is an apocalyptic number.

It is an amenable number.

52408297 is a deficient number, since it is larger than the sum of its proper divisors (3082859).

52408297 is a wasteful number, since it uses less digits than its factorization.

52408297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3082858.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 52408297 is about 7239.3574991155. The cubic root of 52408297 is about 374.2254757710.

The spelling of 52408297 in words is "fifty-two million, four hundred eight thousand, two hundred ninety-seven".

Divisors: 1 17 3082841 52408297