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131316365 = 5131200483
BaseRepresentation
bin1111101001110…
…11101010001101
3100011002120012002
413310323222031
5232104110430
621010322045
73153112355
oct764735215
9304076162
10131316365
1168140a24
1237b89325
13212899bb
1413623b65
15b7dd845
hex7d3ba8d

131316365 has 8 divisors (see below), whose sum is σ = 158783328. Its totient is φ = 104250640.

The previous prime is 131316337. The next prime is 131316371. The reversal of 131316365 is 563613131.

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

It is not a de Polignac number, because 131316365 - 26 = 131316301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 99587 + ... + 100896.

It is an arithmetic number, because the mean of its divisors is an integer number (19847916).

Almost surely, 2131316365 is an apocalyptic number.

It is an amenable number.

131316365 is a deficient number, since it is larger than the sum of its proper divisors (27466963).

131316365 is a wasteful number, since it uses less digits than its factorization.

131316365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200619.

The product of its digits is 4860, while the sum is 29.

The square root of 131316365 is about 11459.3352774059. The cubic root of 131316365 is about 508.2838187610.

Adding to 131316365 its reverse (563613131), we get a palindrome (694929496).

The spelling of 131316365 in words is "one hundred thirty-one million, three hundred sixteen thousand, three hundred sixty-five".

Divisors: 1 5 131 655 200483 1002415 26263273 131316365