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2006965 = 5401393
BaseRepresentation
bin111101001111110110101
310202222001001
413221332311
51003210330
6111003301
723026132
oct7517665
93688031
102006965
111150954
12809531
1355366c
143a3589
152999ca
hex1e9fb5

2006965 has 4 divisors (see below), whose sum is σ = 2408364. Its totient is φ = 1605568.

The previous prime is 2006959. The next prime is 2007001. The reversal of 2006965 is 5696002.

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 842724 + 1164241 = 918^2 + 1079^2 .

It is a cyclic number.

It is not a de Polignac number, because 2006965 - 211 = 2004917 is a prime.

It is a super-2 number, since 2×20069652 = 8055817022450, which contains 22 as substring.

It is a Duffinian number.

2006965 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200692 + ... + 200701.

It is an arithmetic number, because the mean of its divisors is an integer number (602091).

22006965 is an apocalyptic number.

It is an amenable number.

2006965 is a deficient number, since it is larger than the sum of its proper divisors (401399).

2006965 is an equidigital number, since it uses as much as digits as its factorization.

2006965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401398.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 2006965 is about 1416.6739215501. The cubic root of 2006965 is about 126.1381913738.

The spelling of 2006965 in words is "two million, six thousand, nine hundred sixty-five".

Divisors: 1 5 401393 2006965