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5216287 = 43121309
BaseRepresentation
bin10011111001100000011111
3100211000101211
4103321200133
52313410122
6303445251
762223556
oct23714037
910730354
105216287
112a4308a
1218b6827
13110837b
1499ad9d
156d0877
hex4f981f

5216287 has 4 divisors (see below), whose sum is σ = 5337640. Its totient is φ = 5094936.

The previous prime is 5216273. The next prime is 5216303. The reversal of 5216287 is 7826125.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-5216287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5216227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60612 + ... + 60697.

It is an arithmetic number, because the mean of its divisors is an integer number (1334410).

Almost surely, 25216287 is an apocalyptic number.

5216287 is a deficient number, since it is larger than the sum of its proper divisors (121353).

5216287 is a wasteful number, since it uses less digits than its factorization.

5216287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121352.

The product of its digits is 6720, while the sum is 31.

The square root of 5216287 is about 2283.9192192370. The cubic root of 5216287 is about 173.4285099417.

The spelling of 5216287 in words is "five million, two hundred sixteen thousand, two hundred eighty-seven".

Divisors: 1 43 121309 5216287