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142045444443 = 37171741228539
BaseRepresentation
bin1000010001001010010…
…0010111100101011011
3111120122101120020000210
42010102210113211123
54311402113210233
6145131010502203
713156006233120
oct2042244274533
9446571506023
10142045444443
1155271a4a8a1
1223642894963
131051958b056
146c37156747
153a655ae163
hex211291795b

142045444443 has 32 divisors (see below), whose sum is σ = 229315207680. Its totient is φ = 76349975040.

The previous prime is 142045444433. The next prime is 142045444459. The reversal of 142045444443 is 344444540241.

It is not a de Polignac number, because 142045444443 - 218 = 142045182299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142045444433) 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 31 ways as a sum of consecutive naturals, for example, 507268 + ... + 735806.

It is an arithmetic number, because the mean of its divisors is an integer number (7166100240).

Almost surely, 2142045444443 is an apocalyptic number.

142045444443 is a deficient number, since it is larger than the sum of its proper divisors (87269763237).

142045444443 is a wasteful number, since it uses less digits than its factorization.

142045444443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230307.

The product of its (nonzero) digits is 491520, while the sum is 39.

Adding to 142045444443 its reverse (344444540241), we get a palindrome (486489984684).

The spelling of 142045444443 in words is "one hundred forty-two billion, forty-five million, four hundred forty-four thousand, four hundred forty-three".

Divisors: 1 3 7 17 21 51 119 357 1741 5223 12187 29597 36561 88791 207179 228539 621537 685617 1599773 3885163 4799319 11655489 27196141 81588423 397886399 1193659197 2785204793 6764068783 8355614379 20292206349 47348481481 142045444443