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444031047 = 321011932531
BaseRepresentation
bin11010011101110…
…110000001000111
31010221112010002100
4122131312001013
51402132443142
6112021043143
714001126105
oct3235660107
91127463070
10444031047
1120870a109
121048564b3
1370cb9b85
1442d86c75
1528eaeb4c
hex1a776047

444031047 has 24 divisors (see below), whose sum is σ = 651341808. Its totient is φ = 291456000.

The previous prime is 444031039. The next prime is 444031067. The reversal of 444031047 is 740130444.

It is not a de Polignac number, because 444031047 - 23 = 444031039 is a prime.

It is a super-4 number, since 4×4440310474 (a number of 36 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 444031047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444031067) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 174172 + ... + 176702.

It is an arithmetic number, because the mean of its divisors is an integer number (27139242).

Almost surely, 2444031047 is an apocalyptic number.

444031047 is a deficient number, since it is larger than the sum of its proper divisors (207310761).

444031047 is a wasteful number, since it uses less digits than its factorization.

444031047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2831 (or 2828 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 444031047 is about 21072.0442055345. The cubic root of 444031047 is about 762.9061439989.

The spelling of 444031047 in words is "four hundred forty-four million, thirty-one thousand, forty-seven".

Divisors: 1 3 9 101 193 303 579 909 1737 2531 7593 19493 22779 58479 175437 255631 488483 766893 1465449 2300679 4396347 49336783 148010349 444031047