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444312 = 233311217
BaseRepresentation
bin1101100011110011000
3211120111000
41230132120
5103204222
613305000
73530241
oct1543630
9746430
10444312
11283900
12195160
1312730b
14b7cc8
158b9ac
hex6c798

444312 has 96 divisors (see below), whose sum is σ = 1436400. Its totient is φ = 126720.

The previous prime is 444307. The next prime is 444341. The reversal of 444312 is 213444.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

444312 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 23 ways as a sum of consecutive naturals, for example, 26128 + ... + 26144.

2444312 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 444312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (718200).

444312 is an abundant number, since it is smaller than the sum of its proper divisors (992088).

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

444312 is a wasteful number, since it uses less digits than its factorization.

444312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54 (or 33 counting only the distinct ones).

The product of its digits is 384, while the sum is 18.

The square root of 444312 is about 666.5673259319. The cubic root of 444312 is about 76.3067015317.

Adding to 444312 its reverse (213444), we get a palindrome (657756).

It can be divided in two parts, 44 and 4312, that added together give a square (4356 = 662).

The spelling of 444312 in words is "four hundred forty-four thousand, three hundred twelve", and thus it is an iban number.

Divisors: 1 2 3 4 6 8 9 11 12 17 18 22 24 27 33 34 36 44 51 54 66 68 72 88 99 102 108 121 132 136 153 187 198 204 216 242 264 297 306 363 374 396 408 459 484 561 594 612 726 748 792 918 968 1089 1122 1188 1224 1452 1496 1683 1836 2057 2178 2244 2376 2904 3267 3366 3672 4114 4356 4488 5049 6171 6534 6732 8228 8712 10098 12342 13068 13464 16456 18513 20196 24684 26136 37026 40392 49368 55539 74052 111078 148104 222156 444312