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144327853 = 1154912497
BaseRepresentation
bin10001001101001…
…00010010101101
3101001120121121001
420212210102231
5243421442403
622153240301
73401523625
oct1046442255
9331517531
10144327853
117451871a
1240403091
1323b941c7
141524d885
15ca0dc1d
hex89a44ad

144327853 has 4 divisors (see below), whose sum is σ = 144351900. Its totient is φ = 144303808.

The previous prime is 144327839. The next prime is 144327871. The reversal of 144327853 is 358723441.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 114875524 + 29452329 = 10718^2 + 5427^2 .

It is a cyclic number.

It is not a de Polignac number, because 144327853 - 29 = 144327341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144327353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5301 + ... + 17797.

It is an arithmetic number, because the mean of its divisors is an integer number (36087975).

Almost surely, 2144327853 is an apocalyptic number.

It is an amenable number.

144327853 is a deficient number, since it is larger than the sum of its proper divisors (24047).

144327853 is a wasteful number, since it uses less digits than its factorization.

144327853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24046.

The product of its digits is 80640, while the sum is 37.

The square root of 144327853 is about 12013.6527750722. The cubic root of 144327853 is about 524.5457634136.

The spelling of 144327853 in words is "one hundred forty-four million, three hundred twenty-seven thousand, eight hundred fifty-three".

Divisors: 1 11549 12497 144327853