Search a number
-
+
4286391 = 33893673
BaseRepresentation
bin10000010110011110110111
322001202211020
4100112132313
52044131031
6231512223
751301524
oct20263667
98052736
104286391
11246847a
121528673
13b71035
147d814b
1559a096
hex4167b7

4286391 has 8 divisors (see below), whose sum is σ = 5731440. Its totient is φ = 2849472.

The previous prime is 4286357. The next prime is 4286393. The reversal of 4286391 is 1936824.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4286391 - 210 = 4285367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4286393) 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 7 ways as a sum of consecutive naturals, for example, 670 + ... + 3003.

It is an arithmetic number, because the mean of its divisors is an integer number (716430).

Almost surely, 24286391 is an apocalyptic number.

4286391 is a deficient number, since it is larger than the sum of its proper divisors (1445049).

4286391 is a wasteful number, since it uses less digits than its factorization.

4286391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4065.

The product of its digits is 10368, while the sum is 33.

The square root of 4286391 is about 2070.3601136034. The cubic root of 4286391 is about 162.4416011060.

The spelling of 4286391 in words is "four million, two hundred eighty-six thousand, three hundred ninety-one".

Divisors: 1 3 389 1167 3673 11019 1428797 4286391