Search a number
-
+
4218297 = 34729917
BaseRepresentation
bin10000000101110110111001
321221022102020
4100011312321
52034441142
6230225053
750566146
oct20056671
97838366
104218297
1124212a6
1214b5189
13b49045
147bb3cd
15584cec
hex405db9

4218297 has 8 divisors (see below), whose sum is σ = 5744256. Its totient is φ = 2752272.

The previous prime is 4218293. The next prime is 4218299. The reversal of 4218297 is 7928124.

It is a happy number.

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

It is not a de Polignac number, because 4218297 - 22 = 4218293 is a prime.

It is a d-powerful number, because it can be written as 410 + 25 + 1 + 87 + 219 + 96 + 75 .

4218297 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4218293) 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 7 ways as a sum of consecutive naturals, for example, 14818 + ... + 15099.

It is an arithmetic number, because the mean of its divisors is an integer number (718032).

Almost surely, 24218297 is an apocalyptic number.

4218297 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

It is an amenable number.

4218297 is a deficient number, since it is larger than the sum of its proper divisors (1525959).

4218297 is a wasteful number, since it uses less digits than its factorization.

4218297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29967.

The product of its digits is 8064, while the sum is 33.

The square root of 4218297 is about 2053.8493128757. The cubic root of 4218297 is about 161.5768180851.

The spelling of 4218297 in words is "four million, two hundred eighteen thousand, two hundred ninety-seven".

Divisors: 1 3 47 141 29917 89751 1406099 4218297