Search a number
-
+
144445163 = 197602377
BaseRepresentation
bin10001001110000…
…00111011101011
3101001210120111212
420213000323223
5243434221123
622155543335
73402522632
oct1047007353
9331716455
10144445163
1174598875
124045ab4b
1323c05715
1415280519
15ca33878
hex89c0eeb

144445163 has 4 divisors (see below), whose sum is σ = 152047560. Its totient is φ = 136842768.

The previous prime is 144445159. The next prime is 144445177. The reversal of 144445163 is 361544441.

144445163 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 361544441 = 801145131.

It is a cyclic number.

It is not a de Polignac number, because 144445163 - 22 = 144445159 is a prime.

It is a super-2 number, since 2×1444451632 = 41728810228193138, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144445153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3801170 + ... + 3801207.

It is an arithmetic number, because the mean of its divisors is an integer number (38011890).

Almost surely, 2144445163 is an apocalyptic number.

144445163 is a deficient number, since it is larger than the sum of its proper divisors (7602397).

144445163 is an equidigital number, since it uses as much as digits as its factorization.

144445163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7602396.

The product of its digits is 23040, while the sum is 32.

The square root of 144445163 is about 12018.5341452275. The cubic root of 144445163 is about 524.6878422477.

The spelling of 144445163 in words is "one hundred forty-four million, four hundred forty-five thousand, one hundred sixty-three".

Divisors: 1 19 7602377 144445163