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2662969 = 8929921
BaseRepresentation
bin1010001010001000111001
312000021220111
422022020321
51140203334
6133024321
731430521
oct12121071
95007814
102662969
111559801
12a850a1
1372312a
144d4681
15379064
hex28a239

2662969 has 4 divisors (see below), whose sum is σ = 2692980. Its totient is φ = 2632960.

The previous prime is 2662951. The next prime is 2662981. The reversal of 2662969 is 9692662.

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 1075369 + 1587600 = 1037^2 + 1260^2 .

It is a cyclic number.

It is not a de Polignac number, because 2662969 - 27 = 2662841 is a prime.

It is a super-2 number, since 2×26629692 = 14182807789922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

2662969 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2662949) 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, 14872 + ... + 15049.

It is an arithmetic number, because the mean of its divisors is an integer number (673245).

22662969 is an apocalyptic number.

It is an amenable number.

2662969 is a deficient number, since it is larger than the sum of its proper divisors (30011).

2662969 is an equidigital number, since it uses as much as digits as its factorization.

2662969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30010.

The product of its digits is 69984, while the sum is 40.

The square root of 2662969 is about 1631.8605945362. The cubic root of 2662969 is about 138.6081297500.

The spelling of 2662969 in words is "two million, six hundred sixty-two thousand, nine hundred sixty-nine".

Divisors: 1 89 29921 2662969