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444528012 = 22337044001
BaseRepresentation
bin11010011111101…
…111010110001100
31010222110100210110
4122133233112030
51402244344022
6112035440020
714005266015
oct3237572614
91128410713
10444528012
11208a19525
12104a56010
1371132136
144307600c
152905c00c
hex1a7ef58c

444528012 has 12 divisors (see below), whose sum is σ = 1037232056. Its totient is φ = 148176000.

The previous prime is 444528001. The next prime is 444528031. The reversal of 444528012 is 210825444.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18521989 + ... + 18522012.

Almost surely, 2444528012 is an apocalyptic number.

It is an amenable number.

444528012 is an abundant number, since it is smaller than the sum of its proper divisors (592704044).

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

444528012 is a wasteful number, since it uses less digits than its factorization.

444528012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37044008 (or 37044006 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 30.

The square root of 444528012 is about 21083.8329532369. The cubic root of 444528012 is about 763.1906558569.

The spelling of 444528012 in words is "four hundred forty-four million, five hundred twenty-eight thousand, twelve".

Divisors: 1 2 3 4 6 12 37044001 74088002 111132003 148176004 222264006 444528012