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131304199 = 1329348287
BaseRepresentation
bin1111101001110…
…00101100000111
3100011001221111111
413310320230013
5232103213244
621010145451
73153032035
oct764705407
9304057444
10131304199
1168132874
1237b82287
13212842c0
141361d555
15b7d9e34
hex7d38b07

131304199 has 8 divisors (see below), whose sum is σ = 146280960. Its totient is φ = 117024096.

The previous prime is 131304191. The next prime is 131304221. The reversal of 131304199 is 991403131.

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 131304199 - 23 = 131304191 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131304199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131304191) 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, 173767 + ... + 174520.

It is an arithmetic number, because the mean of its divisors is an integer number (18285120).

Almost surely, 2131304199 is an apocalyptic number.

131304199 is a deficient number, since it is larger than the sum of its proper divisors (14976761).

131304199 is a wasteful number, since it uses less digits than its factorization.

131304199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348329.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 131304199 is about 11458.8044315277. The cubic root of 131304199 is about 508.2681213727.

The spelling of 131304199 in words is "one hundred thirty-one million, three hundred four thousand, one hundred ninety-nine".

Divisors: 1 13 29 377 348287 4527731 10100323 131304199