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131104203 = 3281155521
BaseRepresentation
bin1111101000001…
…11110111001011
3100010200210011020
413310013313023
5232030313303
621002003523
73151236666
oct764076713
9303623136
10131104203
116800658a
1237aa65a3
1321214269
14135aa6dd
15b79aa53
hex7d07dcb

131104203 has 8 divisors (see below), whose sum is σ = 175428816. Its totient is φ = 87091200.

The previous prime is 131104201. The next prime is 131104223. The reversal of 131104203 is 302401131.

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

It is not a de Polignac number, because 131104203 - 21 = 131104201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131104201) 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 7 ways as a sum of consecutive naturals, for example, 76918 + ... + 78603.

It is an arithmetic number, because the mean of its divisors is an integer number (21928602).

Almost surely, 2131104203 is an apocalyptic number.

131104203 is a deficient number, since it is larger than the sum of its proper divisors (44324613).

131104203 is a wasteful number, since it uses less digits than its factorization.

131104203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155805.

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

The square root of 131104203 is about 11450.0743665707. The cubic root of 131104203 is about 508.0099340339.

Adding to 131104203 its reverse (302401131), we get a palindrome (433505334).

The spelling of 131104203 in words is "one hundred thirty-one million, one hundred four thousand, two hundred three".

Divisors: 1 3 281 843 155521 466563 43701401 131104203