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26020145143 = 97268248919
BaseRepresentation
bin11000001110111010…
…111110011111110111
32111011101111022212101
4120032322332133313
5411242124121033
615541542002531
71610542404316
oct301672763767
974141438771
1026020145143
111004276a193
125062116447
1325b89a7bb5
14138ba5a27d
15a2453297d
hex60eebe7f7

26020145143 has 4 divisors (see below), whose sum is σ = 26288394160. Its totient is φ = 25751896128.

The previous prime is 26020145093. The next prime is 26020145153. The reversal of 26020145143 is 34154102062.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-26020145143 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 (26020145153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134124363 + ... + 134124556.

It is an arithmetic number, because the mean of its divisors is an integer number (6572098540).

Almost surely, 226020145143 is an apocalyptic number.

26020145143 is a deficient number, since it is larger than the sum of its proper divisors (268249017).

26020145143 is an equidigital number, since it uses as much as digits as its factorization.

26020145143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268249016.

The product of its (nonzero) digits is 5760, while the sum is 28.

The spelling of 26020145143 in words is "twenty-six billion, twenty million, one hundred forty-five thousand, one hundred forty-three".

Divisors: 1 97 268248919 26020145143