Search a number
-
+
144207164 = 22311162961
BaseRepresentation
bin10001001100001…
…10110100111100
3101001100111001002
420212012310330
5243404112124
622150505432
73400512023
oct1046066474
9331314032
10144207164
1174445a82
1240365278
1323b512aa
141521b8ba
15c9d80ae
hex8986d3c

144207164 has 12 divisors (see below), whose sum is σ = 260503488. Its totient is φ = 69777600.

The previous prime is 144207157. The next prime is 144207179. The reversal of 144207164 is 461702441.

It is a happy number.

It is a super-2 number, since 2×1442071642 = 41591412297845792, which contains 22 as substring.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 581357 + ... + 581604.

It is an arithmetic number, because the mean of its divisors is an integer number (21708624).

Almost surely, 2144207164 is an apocalyptic number.

It is an amenable number.

144207164 is a deficient number, since it is larger than the sum of its proper divisors (116296324).

144207164 is a wasteful number, since it uses less digits than its factorization.

144207164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1162996 (or 1162994 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 144207164 is about 12008.6287310417. The cubic root of 144207164 is about 524.3995117683.

The spelling of 144207164 in words is "one hundred forty-four million, two hundred seven thousand, one hundred sixty-four".

Divisors: 1 2 4 31 62 124 1162961 2325922 4651844 36051791 72103582 144207164