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144199453 = 394336571
BaseRepresentation
bin10001001100001…
…00111100011101
3101001100002110111
420212010330131
5243403340303
622150410021
73400450366
oct1046047435
9331302414
10144199453
1174440202
1240360911
1323b4a928
1415218b6d
15c9d5b6d
hex8984f1d

144199453 has 4 divisors (see below), whose sum is σ = 144239968. Its totient is φ = 144158940.

The previous prime is 144199439. The next prime is 144199459. The reversal of 144199453 is 354991441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 144199453 - 25 = 144199421 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 (144199459) by changing a digit.

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, 14343 + ... + 22228.

It is an arithmetic number, because the mean of its divisors is an integer number (36059992).

Almost surely, 2144199453 is an apocalyptic number.

It is an amenable number.

144199453 is a deficient number, since it is larger than the sum of its proper divisors (40515).

144199453 is an equidigital number, since it uses as much as digits as its factorization.

144199453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40514.

The product of its digits is 77760, while the sum is 40.

The square root of 144199453 is about 12008.3076659453. The cubic root of 144199453 is about 524.3901647599.

The spelling of 144199453 in words is "one hundred forty-four million, one hundred ninety-nine thousand, four hundred fifty-three".

Divisors: 1 3943 36571 144199453