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442443001 = 721113233271
BaseRepresentation
bin11010010111110…
…010010011111001
31010211112102200211
4122113302103321
51401231134001
6111523031121
713651463200
oct3227622371
91124472624
10442443001
11207824a80
1210420b4a1
13708820c0
1442a92237
1528c99351
hex1a5f24f9

442443001 has 48 divisors (see below), whose sum is σ = 609493248. Its totient is φ = 315705600.

The previous prime is 442442951. The next prime is 442443011. The reversal of 442443001 is 100344244.

It is not a de Polignac number, because 442443001 - 29 = 442442489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (442443011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1632496 + ... + 1632766.

It is an arithmetic number, because the mean of its divisors is an integer number (12697776).

Almost surely, 2442443001 is an apocalyptic number.

It is an amenable number.

442443001 is a deficient number, since it is larger than the sum of its proper divisors (167050247).

442443001 is a wasteful number, since it uses less digits than its factorization.

442443001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542 (or 535 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 442443001 is about 21034.3291074377. The cubic root of 442443001 is about 761.9955640949.

Adding to 442443001 its reverse (100344244), we get a palindrome (542787245).

The spelling of 442443001 in words is "four hundred forty-two million, four hundred forty-three thousand, one".

Divisors: 1 7 11 13 49 77 91 143 233 271 539 637 1001 1631 1897 2563 2981 3029 3523 7007 11417 13279 17941 20867 21203 24661 33319 38753 63143 125587 146069 148421 172627 233233 271271 442001 694573 820859 1632631 1898897 3094007 4862011 5746013 9029449 34034077 40222091 63206143 442443001