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4493780 = 2251713217
BaseRepresentation
bin10001001001000111010100
322110022022022
4101021013110
52122300110
6240152312
753124254
oct21110724
98408268
104493780
11259a275
121608698
13c14555
1484d964
155db755
hex4491d4

4493780 has 24 divisors (see below), whose sum is σ = 9992808. Its totient is φ = 1691648.

The previous prime is 4493779. The next prime is 4493789. The reversal of 4493780 is 873944.

It can be written as a sum of positive squares in 4 ways, for example, as 753424 + 3740356 = 868^2 + 1934^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 4493780.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4493789) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6269 + ... + 6948.

It is an arithmetic number, because the mean of its divisors is an integer number (416367).

Almost surely, 24493780 is an apocalyptic number.

It is an amenable number.

4493780 is an abundant number, since it is smaller than the sum of its proper divisors (5499028).

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

4493780 is a wasteful number, since it uses less digits than its factorization.

4493780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13243 (or 13241 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 4493780 is about 2119.8537685416. The cubic root of 4493780 is about 165.0202607505.

The spelling of 4493780 in words is "four million, four hundred ninety-three thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 13217 26434 52868 66085 132170 224689 264340 449378 898756 1123445 2246890 4493780