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144892 = 22113789
BaseRepresentation
bin100011010111111100
321100202101
4203113330
514114032
63034444
71142266
oct432774
9240671
10144892
1199950
126ba24
1350c47
143ab36
152cde7
hex235fc

144892 has 24 divisors (see below), whose sum is σ = 287280. Its totient is φ = 63360.

The previous prime is 144889. The next prime is 144899. The reversal of 144892 is 298441.

It is a nialpdrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 144892.

It is a congruent number.

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

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1584 + ... + 1672.

It is an arithmetic number, because the mean of its divisors is an integer number (11970).

2144892 is an apocalyptic number.

It is an amenable number.

144892 is a deficient number, since it is larger than the sum of its proper divisors (142388).

144892 is a wasteful number, since it uses less digits than its factorization.

144892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141 (or 139 counting only the distinct ones).

The product of its digits is 2304, while the sum is 28.

The square root of 144892 is about 380.6468179297. The cubic root of 144892 is about 52.5228320946.

Multiplying 144892 by its sum of digits (28), we get a triangular number (4056976 = T2848).

It can be divided in two parts, 1448 and 92, that added together give a triangular number (1540 = T55).

The spelling of 144892 in words is "one hundred forty-four thousand, eight hundred ninety-two".

Divisors: 1 2 4 11 22 37 44 74 89 148 178 356 407 814 979 1628 1958 3293 3916 6586 13172 36223 72446 144892