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444838394 = 271113222197
BaseRepresentation
bin11010100000111…
…011000111111010
31011000001010120002
4122200323013322
51402334312034
6112050233002
714011030640
oct3240730772
91130033502
10444838394
11209110740
12104b85762
13712104b0
1443117190
15290bde7e
hex1a83b1fa

444838394 has 32 divisors (see below), whose sum is σ = 895902336. Its totient is φ = 159981120.

The previous prime is 444838369. The next prime is 444838517. The reversal of 444838394 is 493838444.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109097 + ... + 113100.

It is an arithmetic number, because the mean of its divisors is an integer number (27996948).

Almost surely, 2444838394 is an apocalyptic number.

444838394 is an abundant number, since it is smaller than the sum of its proper divisors (451063942).

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

444838394 is a wasteful number, since it uses less digits than its factorization.

444838394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222230.

The product of its digits is 1327104, while the sum is 47.

The square root of 444838394 is about 21091.1923323457. The cubic root of 444838394 is about 763.3682416145.

Subtracting 444838394 from its reverse (493838444), we obtain a triangular number (49000050 = T9899).

It can be divided in two parts, 444 and 838394, that added together give a palindrome (838838).

The spelling of 444838394 in words is "four hundred forty-four million, eight hundred thirty-eight thousand, three hundred ninety-four".

Divisors: 1 2 7 11 13 14 22 26 77 91 143 154 182 286 1001 2002 222197 444394 1555379 2444167 2888561 3110758 4888334 5777122 17109169 20219927 31774171 34218338 40439854 63548342 222419197 444838394