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144311995 = 528862399
BaseRepresentation
bin10001001101000…
…00011010111011
3101001112210211201
420212200122323
5243420440440
622153035031
73401426452
oct1046403273
9331483751
10144311995
1174507813
12403b5a77
1323b89c19
1415247b99
15ca0919a
hex89a06bb

144311995 has 4 divisors (see below), whose sum is σ = 173174400. Its totient is φ = 115449592.

The previous prime is 144311977. The next prime is 144312001. The reversal of 144311995 is 599113441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 599113441 = 3191187751.

It is a cyclic number.

It is not a de Polignac number, because 144311995 - 217 = 144180923 is a prime.

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, 14431195 + ... + 14431204.

It is an arithmetic number, because the mean of its divisors is an integer number (43293600).

Almost surely, 2144311995 is an apocalyptic number.

144311995 is a deficient number, since it is larger than the sum of its proper divisors (28862405).

144311995 is an equidigital number, since it uses as much as digits as its factorization.

144311995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28862404.

The product of its digits is 19440, while the sum is 37.

The square root of 144311995 is about 12012.9927578435. The cubic root of 144311995 is about 524.5265512490.

The spelling of 144311995 in words is "one hundred forty-four million, three hundred eleven thousand, nine hundred ninety-five".

Divisors: 1 5 28862399 144311995