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444400032412 = 22740699389971
BaseRepresentation
bin1100111011110000100…
…11100101101010011100
31120111002000001201020201
412131320103211222130
524240112402014122
6540053214553244
744051434643440
oct6357023455234
91514060051221
10444400032412
11161518261966
1272164808824
1332ba316557b
141771ac96820
15b85e823a27
hex67784e5a9c

444400032412 has 24 divisors (see below), whose sum is σ = 888824182400. Its totient is φ = 190451988720.

The previous prime is 444400032383. The next prime is 444400032431. The reversal of 444400032412 is 214230004444.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

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, 944587 + ... + 1334557.

Almost surely, 2444400032412 is an apocalyptic number.

It is an amenable number.

444400032412 is an abundant number, since it is smaller than the sum of its proper divisors (444424149988).

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

444400032412 is a wasteful number, since it uses less digits than its factorization.

444400032412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430681 (or 430679 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 444400032412 its reverse (214230004444), we get a palindrome (658630036856).

The spelling of 444400032412 in words is "four hundred forty-four billion, four hundred million, thirty-two thousand, four hundred twelve".

Divisors: 1 2 4 7 14 28 40699 81398 162796 284893 389971 569786 779942 1139572 1559884 2729797 5459594 10919188 15871429729 31742859458 63485718916 111100008103 222200016206 444400032412