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4180109 = 4219929
BaseRepresentation
bin1111111100100010001101
321212101000212
433330202031
52032230414
6225332205
750346623
oct17744215
97771025
104180109
1123a563a
121497065
13b3484b
147ab513
1557883e
hex3fc88d

4180109 has 4 divisors (see below), whose sum is σ = 4190460. Its totient is φ = 4169760.

The previous prime is 4180097. The next prime is 4180153. The reversal of 4180109 is 9010814.

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 299209 + 3880900 = 547^2 + 1970^2 .

It is a cyclic number.

It is not a de Polignac number, because 4180109 - 24 = 4180093 is a prime.

It is a super-2 number, since 2×41801092 = 34946622503762, which contains 22 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 (4180609) 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 3 ways as a sum of consecutive naturals, for example, 4544 + ... + 5385.

It is an arithmetic number, because the mean of its divisors is an integer number (1047615).

Almost surely, 24180109 is an apocalyptic number.

It is an amenable number.

4180109 is a deficient number, since it is larger than the sum of its proper divisors (10351).

4180109 is an equidigital number, since it uses as much as digits as its factorization.

4180109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10350.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 4180109 is about 2044.5314866737. The cubic root of 4180109 is about 161.0877574112.

The spelling of 4180109 in words is "four million, one hundred eighty thousand, one hundred nine".

Divisors: 1 421 9929 4180109