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131320798 = 279380057
BaseRepresentation
bin1111101001111…
…00101111011110
3100011002210021021
413310330233132
5232104231143
621010354354
73153131320
oct764745736
9304083237
10131320798
1168144294
1237b8b9ba
132128ba1b
1413625610
15b7deced
hex7d3cbde

131320798 has 8 divisors (see below), whose sum is σ = 225121392. Its totient is φ = 56280336.

The previous prime is 131320793. The next prime is 131320811. The reversal of 131320798 is 897023131.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131320793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4690015 + ... + 4690042.

It is an arithmetic number, because the mean of its divisors is an integer number (28140174).

Almost surely, 2131320798 is an apocalyptic number.

131320798 is a deficient number, since it is larger than the sum of its proper divisors (93800594).

131320798 is an equidigital number, since it uses as much as digits as its factorization.

131320798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9380066.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 131320798 is about 11459.5286988602. The cubic root of 131320798 is about 508.2895382736.

The spelling of 131320798 in words is "one hundred thirty-one million, three hundred twenty thousand, seven hundred ninety-eight".

Divisors: 1 2 7 14 9380057 18760114 65660399 131320798