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2002069 = 2936833
BaseRepresentation
bin111101000110010010101
310202201022201
413220302111
51003031234
6110524501
723005636
oct7506225
93681281
102002069
111148203
12806731
13551374
143a188d
15298314
hex1e8c95

2002069 has 4 divisors (see below), whose sum is σ = 2009196. Its totient is φ = 1994944.

The previous prime is 2002061. The next prime is 2002079. The reversal of 2002069 is 9602002.

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 1127844 + 874225 = 1062^2 + 935^2 .

It is a cyclic number.

It is not a de Polignac number, because 2002069 - 23 = 2002061 is a prime.

It is a super-2 number, since 2×20020692 = 8016560561522, 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 (2002061) 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 3 ways as a sum of consecutive naturals, for example, 3124 + ... + 3709.

It is an arithmetic number, because the mean of its divisors is an integer number (502299).

22002069 is an apocalyptic number.

It is an amenable number.

2002069 is a deficient number, since it is larger than the sum of its proper divisors (7127).

2002069 is an equidigital number, since it uses as much as digits as its factorization.

2002069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7126.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 2002069 is about 1414.9448752513. The cubic root of 2002069 is about 126.0355362939.

The spelling of 2002069 in words is "two million, two thousand, sixty-nine".

Divisors: 1 293 6833 2002069