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441220 = 225131697
BaseRepresentation
bin1101011101110000100
3211102020111
41223232010
5103104340
613242404
73515233
oct1535604
9742214
10441220
1128154a
12193404
13125aa0
14b6b1a
158aaea
hex6bb84

441220 has 24 divisors (see below), whose sum is σ = 998424. Its totient is φ = 162816.

The previous prime is 441193. The next prime is 441229. The reversal of 441220 is 22144.

It can be written as a sum of positive squares in 4 ways, for example, as 73984 + 367236 = 272^2 + 606^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 441220.

It is not an unprimeable number, because it can be changed into a prime (441229) 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, 589 + ... + 1108.

It is an arithmetic number, because the mean of its divisors is an integer number (41601).

2441220 is an apocalyptic number.

It is an amenable number.

441220 is an abundant number, since it is smaller than the sum of its proper divisors (557204).

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

441220 is a wasteful number, since it uses less digits than its factorization.

441220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1719 (or 1717 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 441220 is about 664.2439310976. The cubic root of 441220 is about 76.1292813437.

Adding to 441220 its reverse (22144), we get a palindrome (463364).

It can be divided in two parts, 441 and 220, that multiplied together give a triangular number (97020 = T440).

The spelling of 441220 in words is "four hundred forty-one thousand, two hundred twenty", and thus it is an iban number.

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 1697 3394 6788 8485 16970 22061 33940 44122 88244 110305 220610 441220