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144022011 = 3717974159
BaseRepresentation
bin10001001010110…
…01100111111011
3101001000002001120
420211121213323
5243332201021
622142520323
73366111150
oct1045314773
9331002046
10144022011
1174329961
12402960a3
1323ab7c33
14151b0227
15c99d2c6
hex89599fb

144022011 has 32 divisors (see below), whose sum is σ = 234823680. Its totient is φ = 76640256.

The previous prime is 144021973. The next prime is 144022013. The reversal of 144022011 is 110220441.

It is not a de Polignac number, because 144022011 - 26 = 144021947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144022013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32550 + ... + 36708.

It is an arithmetic number, because the mean of its divisors is an integer number (7338240).

Almost surely, 2144022011 is an apocalyptic number.

144022011 is a deficient number, since it is larger than the sum of its proper divisors (90801669).

144022011 is a wasteful number, since it uses less digits than its factorization.

144022011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4283.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 144022011 is about 12000.9170899561. The cubic root of 144022011 is about 524.1749835640.

Adding to 144022011 its reverse (110220441), we get a palindrome (254242452).

The spelling of 144022011 in words is "one hundred forty-four million, twenty-two thousand, eleven".

Divisors: 1 3 7 17 21 51 97 119 291 357 679 1649 2037 4159 4947 11543 12477 29113 34629 70703 87339 212109 403423 494921 1210269 1484763 2823961 6858191 8471883 20574573 48007337 144022011