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4165213 = 13320401
BaseRepresentation
bin1111111000111001011101
321211121121011
433320321131
52031241323
6225135221
750255323
oct17707135
97747534
104165213
112395428
12148a511
13b2ab30
147a5d13
1557420d
hex3f8e5d

4165213 has 4 divisors (see below), whose sum is σ = 4485628. Its totient is φ = 3844800.

The previous prime is 4165193. The next prime is 4165229. The reversal of 4165213 is 3125614.

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

It can be written as a sum of positive squares in 2 ways, for example, as 272484 + 3892729 = 522^2 + 1973^2 .

It is a cyclic number.

It is not a de Polignac number, because 4165213 - 25 = 4165181 is a prime.

It is a super-5 number, since 5×41652135 (a number of 34 digits) contains 55555 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4165243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160188 + ... + 160213.

It is an arithmetic number, because the mean of its divisors is an integer number (1121407).

Almost surely, 24165213 is an apocalyptic number.

It is an amenable number.

4165213 is a deficient number, since it is larger than the sum of its proper divisors (320415).

4165213 is a wasteful number, since it uses less digits than its factorization.

4165213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320414.

The product of its digits is 720, while the sum is 22.

The square root of 4165213 is about 2040.8853470982. The cubic root of 4165213 is about 160.8961819278.

The spelling of 4165213 in words is "four million, one hundred sixty-five thousand, two hundred thirteen".

Divisors: 1 13 320401 4165213