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444430133020 = 225132116821731
BaseRepresentation
bin1100111011110100001…
…10011010011100011100
31120111011002200222112001
412131322012122130130
524240143103224040
6540100212052044
744052251541346
oct6357206323434
91514132628461
10444430133020
111615332509a5
1272172904024
1332ba9474293
1417720c90296
15b8622bc59a
hex677a19a71c

444430133020 has 24 divisors (see below), whose sum is σ = 934009847568. Its totient is φ = 177637468800.

The previous prime is 444430133011. The next prime is 444430133023. The reversal of 444430133020 is 20331034444.

It is a self number, because there is not a number n which added to its sum of digits gives 444430133020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444430133023) 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, 8384446 + ... + 8437285.

It is an arithmetic number, because the mean of its divisors is an integer number (38917076982).

Almost surely, 2444430133020 is an apocalyptic number.

It is an amenable number.

444430133020 is an abundant number, since it is smaller than the sum of its proper divisors (489579714548).

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

444430133020 is a wasteful number, since it uses less digits than its factorization.

444430133020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16823061 (or 16823059 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 444430133020 its reverse (20331034444), we get a palindrome (464761167464).

The spelling of 444430133020 in words is "four hundred forty-four billion, four hundred thirty million, one hundred thirty-three thousand, twenty".

Divisors: 1 2 4 5 10 20 1321 2642 5284 6605 13210 26420 16821731 33643462 67286924 84108655 168217310 336434620 22221506651 44443013302 88886026604 111107533255 222215066510 444430133020