Search a number
-
+
144247528 = 23139129719
BaseRepresentation
bin10001001100100…
…00101011101000
3101001102112102001
420212100223220
5243411410103
622151420344
73401040505
oct1046205350
9331375361
10144247528
1174473337
12403846b4
1323b66789
141522c4ac
15c9e501d
hex8990ae8

144247528 has 16 divisors (see below), whose sum is σ = 272412000. Its totient is φ = 71604336.

The previous prime is 144247517. The next prime is 144247531. The reversal of 144247528 is 825742441.

It is a super-2 number, since 2×1442475282 = 41614698668221568, which contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 63748 + ... + 65971.

It is an arithmetic number, because the mean of its divisors is an integer number (17025750).

Almost surely, 2144247528 is an apocalyptic number.

It is an amenable number.

144247528 is a deficient number, since it is larger than the sum of its proper divisors (128164472).

144247528 is a wasteful number, since it uses less digits than its factorization.

144247528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129864 (or 129860 counting only the distinct ones).

The product of its digits is 71680, while the sum is 37.

The square root of 144247528 is about 12010.3092383169. The cubic root of 144247528 is about 524.4484341813.

Adding to 144247528 its reverse (825742441), we get a palindrome (969989969).

It can be divided in two parts, 14424 and 7528, that added together give a cube (21952 = 283).

The spelling of 144247528 in words is "one hundred forty-four million, two hundred forty-seven thousand, five hundred twenty-eight".

Divisors: 1 2 4 8 139 278 556 1112 129719 259438 518876 1037752 18030941 36061882 72123764 144247528