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144145055 = 528829011
BaseRepresentation
bin10001001011101…
…11101010011111
3101001020022211202
420211313222133
5243400120210
622145310115
73400132655
oct1045675237
9331208752
10144145055
117440334a
124033533b
1323b2bc42
1415202dd5
15c9c49a5
hex8977a9f

144145055 has 4 divisors (see below), whose sum is σ = 172974072. Its totient is φ = 115316040.

The previous prime is 144144977. The next prime is 144145061. The reversal of 144145055 is 550541441.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 144145055 - 210 = 144144031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14414501 + ... + 14414510.

It is an arithmetic number, because the mean of its divisors is an integer number (43243518).

Almost surely, 2144145055 is an apocalyptic number.

144145055 is a deficient number, since it is larger than the sum of its proper divisors (28829017).

144145055 is an equidigital number, since it uses as much as digits as its factorization.

144145055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28829016.

The product of its (nonzero) digits is 8000, while the sum is 29.

The square root of 144145055 is about 12006.0424370398. The cubic root of 144145055 is about 524.3242159106.

Adding to 144145055 its reverse (550541441), we get a palindrome (694686496).

The spelling of 144145055 in words is "one hundred forty-four million, one hundred forty-five thousand, fifty-five".

Divisors: 1 5 28829011 144145055