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131342195 = 531899521
BaseRepresentation
bin1111101010000…
…01111101110011
3100011010212121202
413311001331303
5232110422240
621011041415
73153250565
oct765017563
9304125552
10131342195
1168159376
1237ba026b
132129869a
141362d335
15b7e6315
hex7d41f73

131342195 has 16 divisors (see below), whose sum is σ = 164540160. Its totient is φ = 100531200.

The previous prime is 131342191. The next prime is 131342203. The reversal of 131342195 is 591243131.

It is not a de Polignac number, because 131342195 - 22 = 131342191 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131342191) 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 15 ways as a sum of consecutive naturals, for example, 9035 + ... + 18555.

It is an arithmetic number, because the mean of its divisors is an integer number (10283760).

Almost surely, 2131342195 is an apocalyptic number.

131342195 is a deficient number, since it is larger than the sum of its proper divisors (33197965).

131342195 is an equidigital number, since it uses as much as digits as its factorization.

131342195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9646.

The product of its digits is 3240, while the sum is 29.

The square root of 131342195 is about 11460.4622507122. The cubic root of 131342195 is about 508.3171431435.

The spelling of 131342195 in words is "one hundred thirty-one million, three hundred forty-two thousand, one hundred ninety-five".

Divisors: 1 5 31 89 155 445 2759 9521 13795 47605 295151 847369 1475755 4236845 26268439 131342195