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2670205 = 52112531
BaseRepresentation
bin1010001011111001111101
312000122211111
422023321331
51140421310
6133122021
731460566
oct12137175
95018744
102670205
11156418a
12a89311
13726505
144d716d
1537b28a
hex28be7d

2670205 has 8 divisors (see below), whose sum is σ = 3220704. Its totient is φ = 2125200.

The previous prime is 2670197. The next prime is 2670223. The reversal of 2670205 is 5020762.

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

It is not a de Polignac number, because 2670205 - 23 = 2670197 is a prime.

2670205 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 7 ways as a sum of consecutive naturals, for example, 211 + ... + 2320.

It is an arithmetic number, because the mean of its divisors is an integer number (402588).

22670205 is an apocalyptic number.

It is an amenable number.

2670205 is a deficient number, since it is larger than the sum of its proper divisors (550499).

2670205 is a wasteful number, since it uses less digits than its factorization.

2670205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2747.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 2670205 is about 1634.0761916141. The cubic root of 2670205 is about 138.7335613455.

Adding to 2670205 its reverse (5020762), we get a palindrome (7690967).

The spelling of 2670205 in words is "two million, six hundred seventy thousand, two hundred five".

Divisors: 1 5 211 1055 2531 12655 534041 2670205