Search a number
-
+
13181763341 = 61216094481
BaseRepresentation
bin11000100011011000…
…11011111100001101
31021000122210221220002
430101230123330031
5203444012411331
610020002534045
7644441065625
oct142154337415
937018727802
1013181763341
11565484199a
12267a667325
131320c42386
148d0961885
155223a79cb
hex311b1bf0d

13181763341 has 4 divisors (see below), whose sum is σ = 13397857884. Its totient is φ = 12965668800.

The previous prime is 13181763337. The next prime is 13181763377. The reversal of 13181763341 is 14336718131.

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 6874068100 + 6307695241 = 82910^2 + 79421^2 .

It is a cyclic number.

It is not a de Polignac number, because 13181763341 - 22 = 13181763337 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13181763295 and 13181763304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13181763311) 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, 108047180 + ... + 108047301.

It is an arithmetic number, because the mean of its divisors is an integer number (3349464471).

Almost surely, 213181763341 is an apocalyptic number.

It is an amenable number.

13181763341 is a deficient number, since it is larger than the sum of its proper divisors (216094543).

13181763341 is an equidigital number, since it uses as much as digits as its factorization.

13181763341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216094542.

The product of its digits is 36288, while the sum is 38.

The spelling of 13181763341 in words is "thirteen billion, one hundred eighty-one million, seven hundred sixty-three thousand, three hundred forty-one".

Divisors: 1 61 216094481 13181763341