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131302302 = 2347465611
BaseRepresentation
bin1111101001110…
…00001110011110
3100011001211220020
413310320032132
5232103133202
621010133010
73153023355
oct764701636
9304054806
10131302302
11681313aa
1237b81166
1321283491
141361c99c
15b7d95bc
hex7d3839e

131302302 has 16 divisors (see below), whose sum is σ = 268192512. Its totient is φ = 42836120.

The previous prime is 131302289. The next prime is 131302313. The reversal of 131302302 is 203203131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232524 + ... + 233087.

It is an arithmetic number, because the mean of its divisors is an integer number (16762032).

Almost surely, 2131302302 is an apocalyptic number.

131302302 is an abundant number, since it is smaller than the sum of its proper divisors (136890210).

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

131302302 is a wasteful number, since it uses less digits than its factorization.

131302302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465663.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 131302302 is about 11458.7216564502. The cubic root of 131302302 is about 508.2656736488.

Adding to 131302302 its reverse (203203131), we get a palindrome (334505433).

The spelling of 131302302 in words is "one hundred thirty-one million, three hundred two thousand, three hundred two".

Divisors: 1 2 3 6 47 94 141 282 465611 931222 1396833 2793666 21883717 43767434 65651151 131302302