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444022401 = 3318746441
BaseRepresentation
bin11010011101110…
…011111010000001
31010221111200020010
4122131303322001
51402132204101
6112020535133
714001061644
oct3235637201
91127450203
10444022401
11208703669
121048514a9
1370cb5c64
1442d83a5b
1528eac2d6
hex1a773e81

444022401 has 8 divisors (see below), whose sum is σ = 592228384. Its totient is φ = 295915680.

The previous prime is 444022379. The next prime is 444022409. The reversal of 444022401 is 104220444.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 444022401 - 210 = 444021377 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (444022409) 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, 13660 + ... + 32781.

It is an arithmetic number, because the mean of its divisors is an integer number (74028548).

Almost surely, 2444022401 is an apocalyptic number.

It is an amenable number.

444022401 is a deficient number, since it is larger than the sum of its proper divisors (148205983).

444022401 is a wasteful number, since it uses less digits than its factorization.

444022401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49631.

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 444022401 is about 21071.8390512077. The cubic root of 444022401 is about 762.9011922961.

Adding to 444022401 its reverse (104220444), we get a palindrome (548242845).

The spelling of 444022401 in words is "four hundred forty-four million, twenty-two thousand, four hundred one".

Divisors: 1 3 3187 9561 46441 139323 148007467 444022401