Search a number
-
+
144211530 = 23519324907
BaseRepresentation
bin10001001100001…
…11111001001010
3101001100201000210
420212013321022
5243404232110
622150541550
73400530531
oct1046077112
9331321023
10144211530
1174449291
12403678b6
1323b53288
141521d318
15c9d9520
hex8987e4a

144211530 has 32 divisors (see below), whose sum is σ = 347914944. Its totient is φ = 38255616.

The previous prime is 144211523. The next prime is 144211559. The reversal of 144211530 is 35112441.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 144211497 and 144211506.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6664 + ... + 18243.

It is an arithmetic number, because the mean of its divisors is an integer number (10872342).

Almost surely, 2144211530 is an apocalyptic number.

144211530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144211530 is an abundant number, since it is smaller than the sum of its proper divisors (203703414).

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

144211530 is a wasteful number, since it uses less digits than its factorization.

144211530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25110.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 144211530 is about 12008.8105156173. The cubic root of 144211530 is about 524.4048039352.

Adding to 144211530 its reverse (35112441), we get a palindrome (179323971).

It can be divided in two parts, 14421 and 1530, that added together give a palindrome (15951).

The spelling of 144211530 in words is "one hundred forty-four million, two hundred eleven thousand, five hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 193 386 579 965 1158 1930 2895 5790 24907 49814 74721 124535 149442 249070 373605 747210 4807051 9614102 14421153 24035255 28842306 48070510 72105765 144211530