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52387283 = 134029791
BaseRepresentation
bin1100011111010…
…1110111010011
310122120112211202
43013311313103
5101402343113
65110501415
71204166414
oct307656723
9118515752
1052387283
1127631383
121566486b
13ab12bc0
146d5980b
1548ec258
hex31f5dd3

52387283 has 4 divisors (see below), whose sum is σ = 56417088. Its totient is φ = 48357480.

The previous prime is 52387277. The next prime is 52387297. The reversal of 52387283 is 38278325.

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

It is a cyclic number.

It is not a de Polignac number, because 52387283 - 212 = 52383187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52387213) 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, 2014883 + ... + 2014908.

It is an arithmetic number, because the mean of its divisors is an integer number (14104272).

Almost surely, 252387283 is an apocalyptic number.

52387283 is a deficient number, since it is larger than the sum of its proper divisors (4029805).

52387283 is a wasteful number, since it uses less digits than its factorization.

52387283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4029804.

The product of its digits is 80640, while the sum is 38.

The square root of 52387283 is about 7237.9059817049. The cubic root of 52387283 is about 374.1754517233.

It can be divided in two parts, 5238 and 7283, that added together give a palindrome (12521).

The spelling of 52387283 in words is "fifty-two million, three hundred eighty-seven thousand, two hundred eighty-three".

Divisors: 1 13 4029791 52387283