Search a number
-
+
181413701144701 = 904320061229807
BaseRepresentation
bin101001001111111010101011…
…001101101101000001111101
3212210022222110202021121120021
4221033322223031231001331
5142234240224443112301
61441500145341052141
753132464426610134
oct5117725315550175
9783288422247507
10181413701144701
115289313393a393
121841b235557051
137a2c31430412c
1432b26818d291b
1515e8ec01168a1
hexa4feab36d07d

181413701144701 has 4 divisors (see below), whose sum is σ = 181433762383552. Its totient is φ = 181393639905852.

The previous prime is 181413701144573. The next prime is 181413701144717. The reversal of 181413701144701 is 107441107314181.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 181413701144701 - 27 = 181413701144573 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 (181413701544701) 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, 10030605861 + ... + 10030623946.

It is an arithmetic number, because the mean of its divisors is an integer number (45358440595888).

Almost surely, 2181413701144701 is an apocalyptic number.

It is an amenable number.

181413701144701 is a deficient number, since it is larger than the sum of its proper divisors (20061238851).

181413701144701 is an equidigital number, since it uses as much as digits as its factorization.

181413701144701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20061238850.

The product of its (nonzero) digits is 75264, while the sum is 43.

Adding to 181413701144701 its reverse (107441107314181), we get a palindrome (288854808458882).

The spelling of 181413701144701 in words is "one hundred eighty-one trillion, four hundred thirteen billion, seven hundred one million, one hundred forty-four thousand, seven hundred one".

Divisors: 1 9043 20061229807 181413701144701