Search a number
-
+
144894 = 23193141
BaseRepresentation
bin100011010111111110
321100202110
4203113332
514114034
63034450
71142301
oct432776
9240673
10144894
1199952
126ba26
1350c49
143ab38
152cde9
hex235fe

144894 has 32 divisors (see below), whose sum is σ = 322560. Its totient is φ = 43200.

The previous prime is 144889. The next prime is 144899. The reversal of 144894 is 498441.

It is an interprime number because it is at equal distance from previous prime (144889) and next prime (144899).

Its product of digits (4608) is a multiple of the sum of its prime divisors (96).

It is a Curzon number.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144899) by changing a digit.

144894 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3514 + ... + 3554.

It is an arithmetic number, because the mean of its divisors is an integer number (10080).

2144894 is an apocalyptic number.

144894 is an abundant number, since it is smaller than the sum of its proper divisors (177666).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144894 is a wasteful number, since it uses less digits than its factorization.

144894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96.

The product of its digits is 4608, while the sum is 30.

The square root of 144894 is about 380.6494450278. The cubic root of 144894 is about 52.5230737578.

The spelling of 144894 in words is "one hundred forty-four thousand, eight hundred ninety-four".

Divisors: 1 2 3 6 19 31 38 41 57 62 82 93 114 123 186 246 589 779 1178 1271 1558 1767 2337 2542 3534 3813 4674 7626 24149 48298 72447 144894