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131320201 = 676073229
BaseRepresentation
bin1111101001111…
…00100110001001
3100011002202110011
413310330212021
5232104221301
621010351521
73153126505
oct764744611
9304082404
10131320201
11681438a1
1237b8b5a1
132128b67c
1413625305
15b7dea51
hex7d3c989

131320201 has 8 divisors (see below), whose sum is σ = 133541120. Its totient is φ = 129107088.

The previous prime is 131320187. The next prime is 131320219. The reversal of 131320201 is 102023131.

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

It is a cyclic number.

It is not a de Polignac number, because 131320201 - 25 = 131320169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131320261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39055 + ... + 42283.

It is an arithmetic number, because the mean of its divisors is an integer number (16692640).

Almost surely, 2131320201 is an apocalyptic number.

It is an amenable number.

131320201 is a deficient number, since it is larger than the sum of its proper divisors (2220919).

131320201 is an equidigital number, since it uses as much as digits as its factorization.

131320201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3903.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 131320201 is about 11459.5026506389. The cubic root of 131320201 is about 508.2887680242.

Adding to 131320201 its reverse (102023131), we get a palindrome (233343332).

The spelling of 131320201 in words is "one hundred thirty-one million, three hundred twenty thousand, two hundred one".

Divisors: 1 67 607 3229 40669 216343 1960003 131320201