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444412020 = 223513569759
BaseRepresentation
bin11010011111010…
…011000001110100
31010222020110200110
4122133103001310
51402232141040
6112033143020
714004303603
oct3237230164
91128213613
10444412020
1120894a368
121049baa70
13710c13c0
1443045a3a
1529037980
hex1a7d3074

444412020 has 48 divisors (see below), whose sum is σ = 1340075520. Its totient is φ = 109393536.

The previous prime is 444411973. The next prime is 444412039. The reversal of 444412020 is 20214444.

It is a congruent 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, 284100 + ... + 285659.

It is an arithmetic number, because the mean of its divisors is an integer number (27918240).

Almost surely, 2444412020 is an apocalyptic number.

It is an amenable number.

444412020 is an abundant number, since it is smaller than the sum of its proper divisors (895663500).

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

444412020 is a wasteful number, since it uses less digits than its factorization.

444412020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569784 (or 569782 counting only the distinct ones).

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

The square root of 444412020 is about 21081.0820405405. The cubic root of 444412020 is about 763.1242695559.

Adding to 444412020 its reverse (20214444), we get a palindrome (464626464).

The spelling of 444412020 in words is "four hundred forty-four million, four hundred twelve thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 13 15 20 26 30 39 52 60 65 78 130 156 195 260 390 780 569759 1139518 1709277 2279036 2848795 3418554 5697590 6837108 7406867 8546385 11395180 14813734 17092770 22220601 29627468 34185540 37034335 44441202 74068670 88882404 111103005 148137340 222206010 444412020