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144168196 = 22109330661
BaseRepresentation
bin10001001011111…
…01010100000100
3101001021111120211
420211331110010
5243401340241
622150005204
73400260304
oct1045752404
9331244524
10144168196
1174419777
1240346804
1323b39633
141520b604
15c9cb781
hex897d504

144168196 has 12 divisors (see below), whose sum is σ = 254609740. Its totient is φ = 71422560.

The previous prime is 144168191. The next prime is 144168203. The reversal of 144168196 is 691861441.

It can be written as a sum of positive squares in 2 ways, for example, as 131423296 + 12744900 = 11464^2 + 3570^2 .

It is not an unprimeable number, because it can be changed into a prime (144168191) 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, 164895 + ... + 165766.

Almost surely, 2144168196 is an apocalyptic number.

It is an amenable number.

144168196 is a deficient number, since it is larger than the sum of its proper divisors (110441544).

144168196 is a wasteful number, since it uses less digits than its factorization.

144168196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330774 (or 330772 counting only the distinct ones).

The product of its digits is 41472, while the sum is 40.

The square root of 144168196 is about 12007.0061214276. The cubic root of 144168196 is about 524.3522726887.

The spelling of 144168196 in words is "one hundred forty-four million, one hundred sixty-eight thousand, one hundred ninety-six".

Divisors: 1 2 4 109 218 436 330661 661322 1322644 36042049 72084098 144168196