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4427215 = 51368111
BaseRepresentation
bin10000111000110111001111
322022220222221
4100320313033
52113132330
6234520211
752426222
oct20706717
98286887
104427215
112554261
121596067
13bc0170
148335b9
155c6b7a
hex438dcf

4427215 has 8 divisors (see below), whose sum is σ = 5721408. Its totient is φ = 3269280.

The previous prime is 4427173. The next prime is 4427251. The reversal of 4427215 is 5127244.

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

It is not a de Polignac number, because 4427215 - 215 = 4394447 is a prime.

It is a super-3 number, since 3×44272153 (a number of 21 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4427215.

It is a congruent number.

It is an unprimeable number.

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, 33991 + ... + 34120.

It is an arithmetic number, because the mean of its divisors is an integer number (715176).

Almost surely, 24427215 is an apocalyptic number.

4427215 is a deficient number, since it is larger than the sum of its proper divisors (1294193).

4427215 is a wasteful number, since it uses less digits than its factorization.

4427215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68129.

The product of its digits is 2240, while the sum is 25.

The square root of 4427215 is about 2104.0948172552. The cubic root of 4427215 is about 164.2014058372.

The spelling of 4427215 in words is "four million, four hundred twenty-seven thousand, two hundred fifteen".

Divisors: 1 5 13 65 68111 340555 885443 4427215