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13131323132 = 223739877997
BaseRepresentation
bin11000011101011000…
…00001011011111100
31020220010220022221012
430032230001123330
5203343104320012
610011001454352
7643256255624
oct141654013374
936803808835
1013131323132
115629320474
1226657a13b8
1313136617b5
148c7d91884
1551cc42622
hex30eb016fc

13131323132 has 12 divisors (see below), whose sum is σ = 22985987640. Its totient is φ = 6563898096.

The previous prime is 13131323131. The next prime is 13131323143. The reversal of 13131323132 is 23132313131.

13131323132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 13131323098 and 13131323107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13131323131) 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 3 ways as a sum of consecutive naturals, for example, 424043 + ... + 453954.

It is an arithmetic number, because the mean of its divisors is an integer number (1915498970).

Almost surely, 213131323132 is an apocalyptic number.

It is an amenable number.

13131323132 is a deficient number, since it is larger than the sum of its proper divisors (9854664508).

13131323132 is a wasteful number, since it uses less digits than its factorization.

13131323132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881740 (or 881738 counting only the distinct ones).

The product of its digits is 972, while the sum is 23.

Adding to 13131323132 its reverse (23132313131), we get a palindrome (36263636263).

The spelling of 13131323132 in words is "thirteen billion, one hundred thirty-one million, three hundred twenty-three thousand, one hundred thirty-two".

Divisors: 1 2 4 3739 7478 14956 877997 1755994 3511988 3282830783 6565661566 13131323132