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2670220 = 225719073
BaseRepresentation
bin1010001011111010001100
312000122212001
422023322030
51140421340
6133122044
731460620
oct12137214
95018761
102670220
1115641a3
12a89324
13726517
144d7180
1537b29a
hex28be8c

2670220 has 24 divisors (see below), whose sum is σ = 6408864. Its totient is φ = 915456.

The previous prime is 2670197. The next prime is 2670223. The reversal of 2670220 is 220762.

It is a happy number.

2670220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2670223) 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 7 ways as a sum of consecutive naturals, for example, 9397 + ... + 9676.

It is an arithmetic number, because the mean of its divisors is an integer number (267036).

22670220 is an apocalyptic number.

2670220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2670220 is an abundant number, since it is smaller than the sum of its proper divisors (3738644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2670220 is a wasteful number, since it uses less digits than its factorization.

2670220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19089 (or 19087 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 2670220 is about 1634.0807813569. The cubic root of 2670220 is about 138.7338211257.

Adding to 2670220 its reverse (220762), we get a palindrome (2890982).

The spelling of 2670220 in words is "two million, six hundred seventy thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 19073 38146 76292 95365 133511 190730 267022 381460 534044 667555 1335110 2670220