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52071049 = 327115919
BaseRepresentation
bin1100011010100…
…0101010001001
310121222111001101
43012220222021
5101312233144
65100021401
71201411432
oct306505211
9117874041
1052071049
1127435828
1215531861
13aa31c94
146cb6489
1548886d4
hex31a8a89

52071049 has 4 divisors (see below), whose sum is σ = 52090240. Its totient is φ = 52051860.

The previous prime is 52071029. The next prime is 52071067. The reversal of 52071049 is 94017025.

It is a happy number.

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 52071049 - 215 = 52038281 is a prime.

It is a super-2 number, since 2×520710492 = 5422788287920802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52071029) 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, 4689 + ... + 11230.

It is an arithmetic number, because the mean of its divisors is an integer number (13022560).

Almost surely, 252071049 is an apocalyptic number.

It is an amenable number.

52071049 is a deficient number, since it is larger than the sum of its proper divisors (19191).

52071049 is a wasteful number, since it uses less digits than its factorization.

52071049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19190.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 52071049 is about 7216.0272311016. The cubic root of 52071049 is about 373.4210326673.

The spelling of 52071049 in words is "fifty-two million, seventy-one thousand, forty-nine".

Divisors: 1 3271 15919 52071049