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444912 = 243132331
BaseRepresentation
bin1101100100111110000
3211121022020
41230213300
5103214122
613311440
73532056
oct1544760
9747266
10444912
112842a6
12195580
13127680
14b81d6
158bc5c
hex6c9f0

444912 has 80 divisors (see below), whose sum is σ = 1333248. Its totient is φ = 126720.

The previous prime is 444901. The next prime is 444929. The reversal of 444912 is 219444.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (24).

Its product of digits (1152) is a multiple of the sum of its prime divisors (72).

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 444912.

It is an unprimeable number.

444912 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14337 + ... + 14367.

2444912 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 444912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (666624).

444912 is an abundant number, since it is smaller than the sum of its proper divisors (888336).

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

444912 is a wasteful number, since it uses less digits than its factorization.

444912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78 (or 72 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

The square root of 444912 is about 667.0172411565. The cubic root of 444912 is about 76.3410343334.

The spelling of 444912 in words is "four hundred forty-four thousand, nine hundred twelve".

Divisors: 1 2 3 4 6 8 12 13 16 23 24 26 31 39 46 48 52 62 69 78 92 93 104 124 138 156 184 186 208 248 276 299 312 368 372 403 496 552 598 624 713 744 806 897 1104 1196 1209 1426 1488 1612 1794 2139 2392 2418 2852 3224 3588 4278 4784 4836 5704 6448 7176 8556 9269 9672 11408 14352 17112 18538 19344 27807 34224 37076 55614 74152 111228 148304 222456 444912