Search a number
-
+
13515233142 = 232699383449
BaseRepresentation
bin11001001011001001…
…00001011101110110
31021212220021222110110
430211210201131312
5210134344430032
610113034203450
7655630405035
oct144544413566
937786258413
1013515233142
115805aa6774
122752283586
13137505b598
14922d6871c
155417c87cc
hex325921776

13515233142 has 16 divisors (see below), whose sum is σ = 27031791600. Its totient is φ = 4504856832.

The previous prime is 13515233141. The next prime is 13515233177. The reversal of 13515233142 is 24133251531.

13515233142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13515233141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120234 + ... + 203682.

It is an arithmetic number, because the mean of its divisors is an integer number (1689486975).

Almost surely, 213515233142 is an apocalyptic number.

13515233142 is an abundant number, since it is smaller than the sum of its proper divisors (13516558458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13515233142 is a wasteful number, since it uses less digits than its factorization.

13515233142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110447.

The product of its digits is 10800, while the sum is 30.

Adding to 13515233142 its reverse (24133251531), we get a palindrome (37648484673).

The spelling of 13515233142 in words is "thirteen billion, five hundred fifteen million, two hundred thirty-three thousand, one hundred forty-two".

Divisors: 1 2 3 6 26993 53986 80979 83449 161958 166898 250347 500694 2252538857 4505077714 6757616571 13515233142