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13144301 = 71185131
BaseRepresentation
bin110010001001…
…000011101101
3220201210120222
4302021003231
511331104201
61145421125
7216503402
oct62110355
926653528
1013144301
117468565
12449a7a5
132952ac1
141a622a9
15124991b
hexc890ed

13144301 has 4 divisors (see below), whose sum is σ = 13329504. Its totient is φ = 12959100.

The previous prime is 13144297. The next prime is 13144319. The reversal of 13144301 is 10344131.

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 13144301 - 22 = 13144297 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13144301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13144331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92495 + ... + 92636.

It is an arithmetic number, because the mean of its divisors is an integer number (3332376).

Almost surely, 213144301 is an apocalyptic number.

It is an amenable number.

13144301 is a deficient number, since it is larger than the sum of its proper divisors (185203).

13144301 is an equidigital number, since it uses as much as digits as its factorization.

13144301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185202.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 13144301 is about 3625.5069990279. The cubic root of 13144301 is about 236.0002693189. Note that the first 3 decimals are identical.

Adding to 13144301 its reverse (10344131), we get a palindrome (23488432).

The spelling of 13144301 in words is "thirteen million, one hundred forty-four thousand, three hundred one".

Divisors: 1 71 185131 13144301