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3221480 = 23580537
BaseRepresentation
bin1100010010011111101000
320001200001002
430102133220
51311041410
6153014132
736245033
oct14223750
96050032
103221480
111900389
1210b4348
1388a402
145dc01a
154397a5
hex3127e8

3221480 has 16 divisors (see below), whose sum is σ = 7248420. Its totient is φ = 1288576.

The previous prime is 3221473. The next prime is 3221497. The reversal of 3221480 is 841223.

3221480 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3189796 + 31684 = 1786^2 + 178^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 40229 + ... + 40308.

Almost surely, 23221480 is an apocalyptic number.

It is an amenable number.

3221480 is an abundant number, since it is smaller than the sum of its proper divisors (4026940).

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

3221480 is a wasteful number, since it uses less digits than its factorization.

3221480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80548 (or 80544 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 3221480 is about 1794.8481829949. The cubic root of 3221480 is about 147.6902457534.

It can be divided in two parts, 32 and 21480, that added together give a palindrome (21512).

The spelling of 3221480 in words is "three million, two hundred twenty-one thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 80537 161074 322148 402685 644296 805370 1610740 3221480