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2997305 = 54114621
BaseRepresentation
bin1011011011110000111001
312122021112022
423123300321
51231403210
6144124225
734322333
oct13336071
95567468
102997305
111767a13
121006675
1380c36c
14580453
153e3155
hex2dbc39

2997305 has 8 divisors (see below), whose sum is σ = 3684744. Its totient is φ = 2339200.

The previous prime is 2997301. The next prime is 2997311. The reversal of 2997305 is 5037992.

It can be written as a sum of positive squares in 4 ways, for example, as 346921 + 2650384 = 589^2 + 1628^2 .

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

It is not a de Polignac number, because 2997305 - 22 = 2997301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2997301) 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 7 ways as a sum of consecutive naturals, for example, 7106 + ... + 7515.

It is an arithmetic number, because the mean of its divisors is an integer number (460593).

22997305 is an apocalyptic number.

It is an amenable number.

2997305 is a deficient number, since it is larger than the sum of its proper divisors (687439).

2997305 is a wasteful number, since it uses less digits than its factorization.

2997305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14667.

The product of its (nonzero) digits is 17010, while the sum is 35.

The square root of 2997305 is about 1731.2726532814. The cubic root of 2997305 is about 144.1817567299.

The spelling of 2997305 in words is "two million, nine hundred ninety-seven thousand, three hundred five".

Divisors: 1 5 41 205 14621 73105 599461 2997305