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144021042011 = 72111012645549
BaseRepresentation
bin1000011000100001010…
…0101011001101011011
3111202202001222222102002
42012020110223031123
54324423341321021
6150055022431215
713255655441600
oct2061024531533
9452661888362
10144021042011
115609613a560
1223ab443250b
13107729701b2
146d8369c6a7
153b2dc5150b
hex218852b35b

144021042011 has 24 divisors (see below), whose sum is σ = 184574732400. Its totient is φ = 111113016000.

The previous prime is 144021042007. The next prime is 144021042047. The reversal of 144021042011 is 110240120441.

It is not a de Polignac number, because 144021042011 - 22 = 144021042007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144021042091) 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 23 ways as a sum of consecutive naturals, for example, 1268336 + ... + 1377213.

It is an arithmetic number, because the mean of its divisors is an integer number (7690613850).

Almost surely, 2144021042011 is an apocalyptic number.

144021042011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

144021042011 is a deficient number, since it is larger than the sum of its proper divisors (40553690389).

144021042011 is a wasteful number, since it uses less digits than its factorization.

144021042011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2645675 (or 2645668 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 144021042011 its reverse (110240120441), we get a palindrome (254261162452).

The spelling of 144021042011 in words is "one hundred forty-four billion, twenty-one million, forty-two thousand, eleven".

Divisors: 1 7 11 49 77 101 539 707 1111 4949 7777 54439 2645549 18518843 29101039 129631901 203707273 267200449 1425950911 1870403143 2939204939 13092822001 20574434573 144021042011