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131303434 = 2101650017
BaseRepresentation
bin1111101001110…
…00100000001010
3100011001220110011
413310320200022
5232103202214
621010142134
73153026563
oct764704012
9304056404
10131303434
1168132239
1237b8194a
1321283b52
141361d16a
15b7d9ac4
hex7d3880a

131303434 has 8 divisors (see below), whose sum is σ = 198905508. Its totient is φ = 65001600.

The previous prime is 131303407. The next prime is 131303441. The reversal of 131303434 is 434303131.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 102111025 + 29192409 = 10105^2 + 5403^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 324807 + ... + 325210.

Almost surely, 2131303434 is an apocalyptic number.

131303434 is a deficient number, since it is larger than the sum of its proper divisors (67602074).

131303434 is a wasteful number, since it uses less digits than its factorization.

131303434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650120.

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 131303434 is about 11458.7710510334. The cubic root of 131303434 is about 508.2671342861.

Adding to 131303434 its reverse (434303131), we get a palindrome (565606565).

The spelling of 131303434 in words is "one hundred thirty-one million, three hundred three thousand, four hundred thirty-four".

Divisors: 1 2 101 202 650017 1300034 65651717 131303434