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2669443 = 71920071
BaseRepresentation
bin1010001011101110000011
312000121210021
422023232003
51140410233
6133114311
731455430
oct12135603
95017707
102669443
111563657
12a88997
1372606a
144d6b87
1537ae2d
hex28bb83

2669443 has 8 divisors (see below), whose sum is σ = 3211520. Its totient is φ = 2167560.

The previous prime is 2669437. The next prime is 2669461. The reversal of 2669443 is 3449662.

2669443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2669443 - 29 = 2668931 is a prime.

It is a Duffinian number.

2669443 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2669399 and 2669408.

It is not an unprimeable number, because it can be changed into a prime (2669423) 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, 9903 + ... + 10168.

It is an arithmetic number, because the mean of its divisors is an integer number (401440).

22669443 is an apocalyptic number.

2669443 is a deficient number, since it is larger than the sum of its proper divisors (542077).

2669443 is a wasteful number, since it uses less digits than its factorization.

2669443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20097.

The product of its digits is 31104, while the sum is 34.

The square root of 2669443 is about 1633.8430157148. The cubic root of 2669443 is about 138.7203632288.

The spelling of 2669443 in words is "two million, six hundred sixty-nine thousand, four hundred forty-three".

Divisors: 1 7 19 133 20071 140497 381349 2669443