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4287669 = 3472647
BaseRepresentation
bin10000010110110010110101
322001211120120
4100112302311
52044201134
6231522153
751305331
oct20266265
98054516
104287669
112469431
121529359
13b717a9
147d87c1
1559a649
hex416cb5

4287669 has 12 divisors (see below), whose sum is σ = 5850144. Its totient is φ = 2793304.

The previous prime is 4287667. The next prime is 4287677. The reversal of 4287669 is 9667824.

It is not a de Polignac number, because 4287669 - 21 = 4287667 is a prime.

It is a super-2 number, since 2×42876692 = 36768210907122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 4287669.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4287667) 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 11 ways as a sum of consecutive naturals, for example, 6304 + ... + 6950.

It is an arithmetic number, because the mean of its divisors is an integer number (487512).

Almost surely, 24287669 is an apocalyptic number.

It is an amenable number.

4287669 is a deficient number, since it is larger than the sum of its proper divisors (1562475).

4287669 is an equidigital number, since it uses as much as digits as its factorization.

4287669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744 (or 697 counting only the distinct ones).

The product of its digits is 145152, while the sum is 42.

The square root of 4287669 is about 2070.6687325596. The cubic root of 4287669 is about 162.4577436478.

The spelling of 4287669 in words is "four million, two hundred eighty-seven thousand, six hundred sixty-nine".

Divisors: 1 3 47 141 647 1941 2209 6627 30409 91227 1429223 4287669