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131320122 = 2321886687
BaseRepresentation
bin1111101001111…
…00100100111010
3100011002202100020
413310330210322
5232104220442
621010351310
73153126333
oct764744472
9304082306
10131320122
116814382a
1237b8b536
132128b61b
141362528a
15b7de9ec
hex7d3c93a

131320122 has 8 divisors (see below), whose sum is σ = 262640256. Its totient is φ = 43773372.

The previous prime is 131320093. The next prime is 131320139. The reversal of 131320122 is 221023131.

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

131320122 is an admirable number.

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, 10943338 + ... + 10943349.

It is an arithmetic number, because the mean of its divisors is an integer number (32830032).

Almost surely, 2131320122 is an apocalyptic number.

131320122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

131320122 is a wasteful number, since it uses less digits than its factorization.

131320122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21886692.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 131320122 is about 11459.4992037174. The cubic root of 131320122 is about 508.2886660982.

Adding to 131320122 its reverse (221023131), we get a palindrome (352343253).

The spelling of 131320122 in words is "one hundred thirty-one million, three hundred twenty thousand, one hundred twenty-two".

Divisors: 1 2 3 6 21886687 43773374 65660061 131320122