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131288203 = 419431727
BaseRepresentation
bin1111101001101…
…00110010001011
3100011001010120001
413310310302023
5232102210303
621005543431
73152634304
oct764646213
9304033501
10131288203
1168121852
1237b74b77
1321279c37
14136177ab
15b7d531d
hex7d34c8b

131288203 has 8 divisors (see below), whose sum is σ = 132088320. Its totient is φ = 130491240.

The previous prime is 131288189. The next prime is 131288207. The reversal of 131288203 is 302882131.

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 131288203 - 29 = 131287691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131288207) 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, 180226 + ... + 180952.

It is an arithmetic number, because the mean of its divisors is an integer number (16511040).

Almost surely, 2131288203 is an apocalyptic number.

131288203 is a deficient number, since it is larger than the sum of its proper divisors (800117).

131288203 is an equidigital number, since it uses as much as digits as its factorization.

131288203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1577.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 131288203 is about 11458.1064316928. The cubic root of 131288203 is about 508.2474807862.

The spelling of 131288203 in words is "one hundred thirty-one million, two hundred eighty-eight thousand, two hundred three".

Divisors: 1 419 431 727 180589 304613 313337 131288203