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13144042343 = 39733108419
BaseRepresentation
bin11000011110111001…
…00010101101100111
31020221000211112102002
430033130202231213
5203404333323333
610012134235515
7643502342105
oct141734425547
936830745362
1013144042343
115635518613
122669ab5b9b
131316195c63
148c9942c75
1551de060e8
hex30f722b67

13144042343 has 4 divisors (see below), whose sum is σ = 13177151160. Its totient is φ = 13110933528.

The previous prime is 13144042339. The next prime is 13144042349. The reversal of 13144042343 is 34324044131.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 13144042343 - 22 = 13144042339 is a prime.

It is a super-2 number, since 2×131440423432 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13144042349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16553813 + ... + 16554606.

It is an arithmetic number, because the mean of its divisors is an integer number (3294287790).

Almost surely, 213144042343 is an apocalyptic number.

13144042343 is a deficient number, since it is larger than the sum of its proper divisors (33108817).

13144042343 is an equidigital number, since it uses as much as digits as its factorization.

13144042343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33108816.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 13144042343 its reverse (34324044131), we get a palindrome (47468086474).

The spelling of 13144042343 in words is "thirteen billion, one hundred forty-four million, forty-two thousand, three hundred forty-three".

Divisors: 1 397 33108419 13144042343