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13873287378 = 232312214563
BaseRepresentation
bin11001110101110100…
…11001000011010010
31022210212001000112110
430322322121003102
5211403030144003
610212344410150
71000535665656
oct147272310322
938725030473
1013873287378
11597a122165
122832176956
1314012a47b2
14958730a66
15562e53a03
hex33ae990d2

13873287378 has 8 divisors (see below), whose sum is σ = 27746574768. Its totient is φ = 4624429124.

The previous prime is 13873287377. The next prime is 13873287419. The reversal of 13873287378 is 87378237831.

13873287378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

13873287378 is an admirable number.

It is a super-2 number, since 2×138732873782 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13873287377) 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 3 ways as a sum of consecutive naturals, for example, 1156107276 + ... + 1156107287.

It is an arithmetic number, because the mean of its divisors is an integer number (3468321846).

Almost surely, 213873287378 is an apocalyptic number.

13873287378 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13873287378 is a wasteful number, since it uses less digits than its factorization.

13873287378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2312214568.

The product of its digits is 9483264, while the sum is 57.

The spelling of 13873287378 in words is "thirteen billion, eight hundred seventy-three million, two hundred eighty-seven thousand, three hundred seventy-eight".

Divisors: 1 2 3 6 2312214563 4624429126 6936643689 13873287378