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131303118 = 2321883853
BaseRepresentation
bin1111101001110…
…00011011001110
3100011001220000110
413310320123032
5232103144433
621010140450
73153025632
oct764703316
9304056013
10131303118
1168131a81
1237b81726
132128396b
141361cdc2
15b7d9963
hex7d386ce

131303118 has 8 divisors (see below), whose sum is σ = 262606248. Its totient is φ = 43767704.

The previous prime is 131303093. The next prime is 131303119. The reversal of 131303118 is 811303131.

It is a sphenic number, since it is the product of 3 distinct primes.

131303118 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 131303094 and 131303103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131303119) 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, 10941921 + ... + 10941932.

It is an arithmetic number, because the mean of its divisors is an integer number (32825781).

Almost surely, 2131303118 is an apocalyptic number.

131303118 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

131303118 is a wasteful number, since it uses less digits than its factorization.

131303118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21883858.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 131303118 is about 11458.7572624609. The cubic root of 131303118 is about 508.2667265472.

Adding to 131303118 its reverse (811303131), we get a palindrome (942606249).

The spelling of 131303118 in words is "one hundred thirty-one million, three hundred three thousand, one hundred eighteen".

Divisors: 1 2 3 6 21883853 43767706 65651559 131303118