Search a number
-
+
144435163 = 891622867
BaseRepresentation
bin10001001101111…
…10011111011011
3101001210001210111
420212332133123
5243433411123
622155425151
73402451525
oct1046763733
9331701714
10144435163
1174591304
12404551b7
1323c00cc2
141527aa15
15ca3090d
hex89be7db

144435163 has 4 divisors (see below), whose sum is σ = 146058120. Its totient is φ = 142812208.

The previous prime is 144435143. The next prime is 144435173. The reversal of 144435163 is 361534441.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 361534441 = 701515741.

It is a cyclic number.

It is not a de Polignac number, because 144435163 - 221 = 142338011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144435143) 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, 811345 + ... + 811522.

It is an arithmetic number, because the mean of its divisors is an integer number (36514530).

Almost surely, 2144435163 is an apocalyptic number.

144435163 is a deficient number, since it is larger than the sum of its proper divisors (1622957).

144435163 is an equidigital number, since it uses as much as digits as its factorization.

144435163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1622956.

The product of its digits is 17280, while the sum is 31.

The square root of 144435163 is about 12018.1181139145. The cubic root of 144435163 is about 524.6757338475.

The spelling of 144435163 in words is "one hundred forty-four million, four hundred thirty-five thousand, one hundred sixty-three".

Divisors: 1 89 1622867 144435163