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444120022 = 21959198091
BaseRepresentation
bin11010011110001…
…011101111010110
31010221200122010201
4122132023233112
51402143320042
6112023011114
714001646363
oct3236135726
91127618121
10444120022
1120876aa45
12104899a9a
137101b518
1442dab46a
1528ecb1b7
hex1a78bbd6

444120022 has 16 divisors (see below), whose sum is σ = 713131200. Its totient is φ = 206805960.

The previous prime is 444120011. The next prime is 444120023. The reversal of 444120022 is 220021444.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444120023) 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, 96804 + ... + 101287.

It is an arithmetic number, because the mean of its divisors is an integer number (44570700).

Almost surely, 2444120022 is an apocalyptic number.

444120022 is a deficient number, since it is larger than the sum of its proper divisors (269011178).

444120022 is a wasteful number, since it uses less digits than its factorization.

444120022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198171.

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 444120022 is about 21074.1553092882. The cubic root of 444120022 is about 762.9570976738.

Adding to 444120022 its reverse (220021444), we get a palindrome (664141466).

The spelling of 444120022 in words is "four hundred forty-four million, one hundred twenty thousand, twenty-two".

Divisors: 1 2 19 38 59 118 1121 2242 198091 396182 3763729 7527458 11687369 23374738 222060011 444120022