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2223340 = 225715881
BaseRepresentation
bin1000011110110011101100
311011221211221
420132303230
51032121330
6115353124
724620020
oct10366354
94157757
102223340
111289479
128b27a4
135cacb2
1441c380
152ddb7a
hex21ecec

2223340 has 24 divisors (see below), whose sum is σ = 5336352. Its totient is φ = 762240.

The previous prime is 2223329. The next prime is 2223371. The reversal of 2223340 is 433222.

It is a d-powerful number, because it can be written as 213 + 215 + 221 + 32 + 39 + 48 + 0 .

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, 7801 + ... + 8080.

It is an arithmetic number, because the mean of its divisors is an integer number (222348).

22223340 is an apocalyptic number.

2223340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2223340 is an abundant number, since it is smaller than the sum of its proper divisors (3113012).

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

2223340 is a wasteful number, since it uses less digits than its factorization.

2223340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15897 (or 15895 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 2223340 is about 1491.0868519305. The cubic root of 2223340 is about 130.5174641317.

Adding to 2223340 its reverse (433222), we get a palindrome (2656562).

The spelling of 2223340 in words is "two million, two hundred twenty-three thousand, three hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 15881 31762 63524 79405 111167 158810 222334 317620 444668 555835 1111670 2223340