Search a number
-
+
144385762 = 2101714781
BaseRepresentation
bin10001001101100…
…10011011100010
3101001200120000211
420212302123202
5243430321022
622154404334
73402154513
oct1046623342
9331616024
10144385762
1174558184
12404306aa
1323bb4681
1415266a0a
15ca20e77
hex89b26e2

144385762 has 8 divisors (see below), whose sum is σ = 218723292. Its totient is φ = 71478000.

The previous prime is 144385757. The next prime is 144385763. The reversal of 144385762 is 267583441.

It can be written as a sum of positive squares in 2 ways, for example, as 142587481 + 1798281 = 11941^2 + 1341^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (144385763) 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 3 ways as a sum of consecutive naturals, for example, 357189 + ... + 357592.

Almost surely, 2144385762 is an apocalyptic number.

144385762 is a deficient number, since it is larger than the sum of its proper divisors (74337530).

144385762 is a wasteful number, since it uses less digits than its factorization.

144385762 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714884.

The product of its digits is 161280, while the sum is 40.

The square root of 144385762 is about 12016.0626662813. The cubic root of 144385762 is about 524.6159089382.

The spelling of 144385762 in words is "one hundred forty-four million, three hundred eighty-five thousand, seven hundred sixty-two".

Divisors: 1 2 101 202 714781 1429562 72192881 144385762