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1443142404 = 2232115636473
BaseRepresentation
bin101011000000100…
…1001101100000100
310201120112020012200
41112001021230010
510423421024104
6355111314500
750522336154
oct12601115404
93646466180
101443142404
11680686280
1234337ba30
1319cca5722
14d9942764
1586a67b39
hex56049b04

1443142404 has 72 divisors (see below), whose sum is σ = 3987258912. Its totient is φ = 436471680.

The previous prime is 1443142403. The next prime is 1443142409. The reversal of 1443142404 is 4042413441.

It is not an unprimeable number, because it can be changed into a prime (1443142403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 219712 + ... + 226184.

It is an arithmetic number, because the mean of its divisors is an integer number (55378596).

Almost surely, 21443142404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1443142404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1993629456).

1443142404 is an abundant number, since it is smaller than the sum of its proper divisors (2544116508).

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

1443142404 is a wasteful number, since it uses less digits than its factorization.

1443142404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7057 (or 7052 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

The square root of 1443142404 is about 37988.7141661836. The cubic root of 1443142404 is about 1130.0640588114.

Adding to 1443142404 its reverse (4042413441), we get a palindrome (5485555845).

The spelling of 1443142404 in words is "one billion, four hundred forty-three million, one hundred forty-two thousand, four hundred four".

Divisors: 1 2 3 4 6 9 11 12 18 22 33 36 44 66 99 132 198 396 563 1126 1689 2252 3378 5067 6193 6473 6756 10134 12386 12946 18579 19419 20268 24772 25892 37158 38838 55737 58257 71203 74316 77676 111474 116514 142406 213609 222948 233028 284812 427218 640827 854436 1281654 2563308 3644299 7288598 10932897 14577196 21865794 32798691 40087289 43731588 65597382 80174578 120261867 131194764 160349156 240523734 360785601 481047468 721571202 1443142404