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3444220 = 2251321019
BaseRepresentation
bin1101001000110111111100
320110222120201
431020313330
51340203340
6201453244
741163313
oct15106774
96428521
103444220
111a4276a
1211a1224
13937900
1465927a
1548079a
hex348dfc

3444220 has 36 divisors (see below), whose sum is σ = 7839720. Its totient is φ = 1270464.

The previous prime is 3444209. The next prime is 3444247. The reversal of 3444220 is 224443.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 2871 + ... + 3889.

It is an arithmetic number, because the mean of its divisors is an integer number (217770).

Almost surely, 23444220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3444220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3919860).

3444220 is an abundant number, since it is smaller than the sum of its proper divisors (4395500).

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

3444220 is a wasteful number, since it uses less digits than its factorization.

3444220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1054 (or 1039 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 3444220 is about 1855.8609861733. The cubic root of 3444220 is about 151.0185495391.

Adding to 3444220 its reverse (224443), we get a palindrome (3668663).

The spelling of 3444220 in words is "three million, four hundred forty-four thousand, two hundred twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 169 260 338 676 845 1019 1690 2038 3380 4076 5095 10190 13247 20380 26494 52988 66235 132470 172211 264940 344422 688844 861055 1722110 3444220