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13446120143 = 311277715569
BaseRepresentation
bin11001000010111001…
…11000001011001111
31021201002020200020202
430201130320023033
5210014201321033
610102125004115
7654131064311
oct144134701317
937632220222
1013446120143
11577aa91095
1227330b363b
131363940711
14917ad77b1
1553a6c58e8
hex3217382cf

13446120143 has 8 divisors (see below), whose sum is σ = 13495079520. Its totient is φ = 13397198080.

The previous prime is 13446120113. The next prime is 13446120173. The reversal of 13446120143 is 34102164431.

It is a happy number.

13446120143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13446120113) and next prime (13446120173).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13446120143 - 28 = 13446119887 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 (13446120113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 855863 + ... + 871431.

It is an arithmetic number, because the mean of its divisors is an integer number (1686884940).

Almost surely, 213446120143 is an apocalyptic number.

13446120143 is a deficient number, since it is larger than the sum of its proper divisors (48959377).

13446120143 is a wasteful number, since it uses less digits than its factorization.

13446120143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18657.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 13446120143 its reverse (34102164431), we get a palindrome (47548284574).

The spelling of 13446120143 in words is "thirteen billion, four hundred forty-six million, one hundred twenty thousand, one hundred forty-three".

Divisors: 1 311 2777 15569 863647 4841959 43235113 13446120143