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444980 = 225191171
BaseRepresentation
bin1101100101000110100
3211121101202
41230220310
5103214410
613312032
73532214
oct1545064
9747352
10444980
11284358
12195618
13127703
14b8244
158bca5
hex6ca34

444980 has 24 divisors (see below), whose sum is σ = 984480. Its totient is φ = 168480.

The previous prime is 444979. The next prime is 445001. The reversal of 444980 is 89444.

444980 = T25 + T26 + ... + T138.

It is a happy number.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 444980.

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, 206 + ... + 965.

It is an arithmetic number, because the mean of its divisors is an integer number (41020).

2444980 is an apocalyptic number.

It is an amenable number.

444980 is an abundant number, since it is smaller than the sum of its proper divisors (539500).

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

444980 is a wasteful number, since it uses less digits than its factorization.

444980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1199 (or 1197 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 444980 is about 667.0682124041. The cubic root of 444980 is about 76.3449234365.

The spelling of 444980 in words is "four hundred forty-four thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 1171 2342 4684 5855 11710 22249 23420 44498 88996 111245 222490 444980