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131302366 = 2135050091
BaseRepresentation
bin1111101001110…
…00001111011110
3100011001211222121
413310320033132
5232103133431
621010133154
73153023506
oct764701736
9304054877
10131302366
1168131458
1237b811ba
1321283510
141361ca06
15b7d9611
hex7d383de

131302366 has 8 divisors (see below), whose sum is σ = 212103864. Its totient is φ = 60601080.

The previous prime is 131302363. The next prime is 131302387. The reversal of 131302366 is 663203131.

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

It is a super-2 number, since 2×1313023662 = 34480622634395912, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 131302366.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131302361) 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, 2525020 + ... + 2525071.

It is an arithmetic number, because the mean of its divisors is an integer number (26512983).

Almost surely, 2131302366 is an apocalyptic number.

131302366 is a deficient number, since it is larger than the sum of its proper divisors (80801498).

131302366 is a wasteful number, since it uses less digits than its factorization.

131302366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5050106.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 131302366 is about 11458.7244490825. The cubic root of 131302366 is about 508.2657562293.

Adding to 131302366 its reverse (663203131), we get a palindrome (794505497).

The spelling of 131302366 in words is "one hundred thirty-one million, three hundred two thousand, three hundred sixty-six".

Divisors: 1 2 13 26 5050091 10100182 65651183 131302366