Search a number
-
+
20130202420133 = 131548477109241
BaseRepresentation
bin1001001001110111011011…
…00100001000001110100101
32122021102120102021202111112
410210323231210020032211
510114303123304421013
6110451404243514405
74145234116233251
oct444735544101645
978242512252445
1020130202420133
116461197522433
122311450088a05
13b303680ac2a0
144d8442579261
1524d975880ba8
hex124eed9083a5

20130202420133 has 4 divisors (see below), whose sum is σ = 21678679529388. Its totient is φ = 18581725310880.

The previous prime is 20130202420051. The next prime is 20130202420151. The reversal of 20130202420133 is 33102420203102.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3522442051489 + 16607760368644 = 1876817^2 + 4075262^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-20130202420133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20130202420099 and 20130202420108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20130202420333) 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, 774238554608 + ... + 774238554633.

It is an arithmetic number, because the mean of its divisors is an integer number (5419669882347).

Almost surely, 220130202420133 is an apocalyptic number.

It is an amenable number.

20130202420133 is a deficient number, since it is larger than the sum of its proper divisors (1548477109255).

20130202420133 is a wasteful number, since it uses less digits than its factorization.

20130202420133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1548477109254.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 20130202420133 its reverse (33102420203102), we get a palindrome (53232622623235).

The spelling of 20130202420133 in words is "twenty trillion, one hundred thirty billion, two hundred two million, four hundred twenty thousand, one hundred thirty-three".

Divisors: 1 13 1548477109241 20130202420133