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444433420 = 225138116091
BaseRepresentation
bin11010011111011…
…000010000001100
31010222021120001001
4122133120100030
51402233332140
6112033430044
714004423154
oct3237302014
91128246031
10444433420
11208964452
12104a0b324
13710cb072
144304d764
152903de9a
hex1a7d840c

444433420 has 24 divisors (see below), whose sum is σ = 934044048. Its totient is φ = 177633600.

The previous prime is 444433411. The next prime is 444433447. The reversal of 444433420 is 24334444.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19575 + ... + 35665.

It is an arithmetic number, because the mean of its divisors is an integer number (38918502).

Almost surely, 2444433420 is an apocalyptic number.

It is an amenable number.

444433420 is an abundant number, since it is smaller than the sum of its proper divisors (489610628).

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

444433420 is a wasteful number, since it uses less digits than its factorization.

444433420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17481 (or 17479 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 28.

The square root of 444433420 is about 21081.5895985099. The cubic root of 444433420 is about 763.1365183974.

Adding to 444433420 its reverse (24334444), we get a palindrome (468767864).

The spelling of 444433420 in words is "four hundred forty-four million, four hundred thirty-three thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 1381 2762 5524 6905 13810 16091 27620 32182 64364 80455 160910 321820 22221671 44443342 88886684 111108355 222216710 444433420