Search a number
-
+
144540011 = 71119313187
BaseRepresentation
bin10001001110110…
…00000101101011
3101001222101121202
420213120011223
5244000240021
622201554415
73403366310
oct1047300553
9331871552
10144540011
1174653060
12404a5a0b
1323c39945
14152a6d07
15ca51a0b
hex89d816b

144540011 has 32 divisors (see below), whose sum is σ = 195870720. Its totient is φ = 103226400.

The previous prime is 144539963. The next prime is 144540013. The reversal of 144540011 is 110045441.

It is a cyclic number.

It is not a de Polignac number, because 144540011 - 226 = 77431147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144540013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43760 + ... + 46946.

It is an arithmetic number, because the mean of its divisors is an integer number (6120960).

Almost surely, 2144540011 is an apocalyptic number.

144540011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

144540011 is a deficient number, since it is larger than the sum of its proper divisors (51330709).

144540011 is a wasteful number, since it uses less digits than its factorization.

144540011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3255.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 144540011 is about 12022.4794031847. The cubic root of 144540011 is about 524.8026602237.

Adding to 144540011 its reverse (110045441), we get a palindrome (254585452).

The spelling of 144540011 in words is "one hundred forty-four million, five hundred forty thousand, eleven".

Divisors: 1 7 11 19 31 77 133 209 217 341 589 1463 2387 3187 4123 6479 22309 35057 45353 60553 98797 245399 423871 666083 691579 1086767 1877143 4662581 7607369 13140001 20648573 144540011