Search a number
-
+
52287163 = 57790619
BaseRepresentation
bin1100011101110…
…1011010111011
310122101110111121
43013131122323
5101341142123
65104410111
71203301465
oct307353273
9118343447
1052287163
1127573135
1215616937
13aaa9466
146d31135
1548cc75d
hex31dd6bb

52287163 has 4 divisors (see below), whose sum is σ = 52378360. Its totient is φ = 52195968.

The previous prime is 52287143. The next prime is 52287227. The reversal of 52287163 is 36178225.

It is a happy number.

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 52287163 - 213 = 52278971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52287113) 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, 44733 + ... + 45886.

It is an arithmetic number, because the mean of its divisors is an integer number (13094590).

Almost surely, 252287163 is an apocalyptic number.

52287163 is a deficient number, since it is larger than the sum of its proper divisors (91197).

52287163 is an equidigital number, since it uses as much as digits as its factorization.

52287163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91196.

The product of its digits is 20160, while the sum is 34.

The square root of 52287163 is about 7230.9863089346. The cubic root of 52287163 is about 373.9369311326.

The spelling of 52287163 in words is "fifty-two million, two hundred eighty-seven thousand, one hundred sixty-three".

Divisors: 1 577 90619 52287163