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131323324 = 22112984621
BaseRepresentation
bin1111101001111…
…01010110111100
3100011002220201211
413310331112330
5232104321244
621010414204
73153141556
oct764752674
9304086654
10131323324
1168146180
1237b91364
132128cc12
14136264d6
15b7e0934
hex7d3d5bc

131323324 has 12 divisors (see below), whose sum is σ = 250708248. Its totient is φ = 59692400.

The previous prime is 131323303. The next prime is 131323349. The reversal of 131323324 is 423323131.

It is a super-3 number, since 3×1313233243 (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 131323295 and 131323304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1492267 + ... + 1492354.

It is an arithmetic number, because the mean of its divisors is an integer number (20892354).

Almost surely, 2131323324 is an apocalyptic number.

It is an amenable number.

131323324 is a deficient number, since it is larger than the sum of its proper divisors (119384924).

131323324 is a wasteful number, since it uses less digits than its factorization.

131323324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2984636 (or 2984634 counting only the distinct ones).

The product of its digits is 1296, while the sum is 22.

The square root of 131323324 is about 11459.6389122869. The cubic root of 131323324 is about 508.2927972932.

Adding to 131323324 its reverse (423323131), we get a palindrome (554646455).

The spelling of 131323324 in words is "one hundred thirty-one million, three hundred twenty-three thousand, three hundred twenty-four".

Divisors: 1 2 4 11 22 44 2984621 5969242 11938484 32830831 65661662 131323324