Search a number
-
+
13131114423 = 372125970951
BaseRepresentation
bin11000011101010110…
…01110011110110111
31020220010111201122020
430032223032132313
5203343031130143
610010553204223
7643254426300
oct141653163667
936803451566
1013131114423
115629198689
122665700673
1313135ba7bb
148c7d397a7
1551cc00883
hex30eace7b7

13131114423 has 24 divisors (see below), whose sum is σ = 20383090560. Its totient is φ = 7497428400.

The previous prime is 13131114407. The next prime is 13131114433. The reversal of 13131114423 is 32441113131.

It is a happy number.

It is not a de Polignac number, because 13131114423 - 24 = 13131114407 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13131114393 and 13131114402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13131114433) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 149598 + ... + 220548.

It is an arithmetic number, because the mean of its divisors is an integer number (849295440).

Almost surely, 213131114423 is an apocalyptic number.

13131114423 is a deficient number, since it is larger than the sum of its proper divisors (7251976137).

13131114423 is a wasteful number, since it uses less digits than its factorization.

13131114423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72227 (or 72220 counting only the distinct ones).

The product of its digits is 864, while the sum is 24.

Adding to 13131114423 its reverse (32441113131), we get a palindrome (45572227554).

The spelling of 13131114423 in words is "thirteen billion, one hundred thirty-one million, one hundred fourteen thousand, four hundred twenty-three".

Divisors: 1 3 7 21 49 147 1259 3777 8813 26439 61691 70951 185073 212853 496657 1489971 3476599 10429797 89327309 267981927 625291163 1875873489 4377038141 13131114423