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131300713 = 197966347
BaseRepresentation
bin1111101001101…
…11110101101001
3100011001202201101
413310313311221
5232103110323
621010121401
73153015625
oct764676551
9304052641
10131300713
1168130195
1237b80261
132128283b
141361c185
15b7d8dad
hex7d37d69

131300713 has 4 divisors (see below), whose sum is σ = 131369040. Its totient is φ = 131232388.

The previous prime is 131300699. The next prime is 131300723. The reversal of 131300713 is 317003131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 317003131 = 1718647243.

It is a cyclic number.

It is not a de Polignac number, because 131300713 - 25 = 131300681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131300723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31195 + ... + 35152.

It is an arithmetic number, because the mean of its divisors is an integer number (32842260).

Almost surely, 2131300713 is an apocalyptic number.

It is an amenable number.

131300713 is a deficient number, since it is larger than the sum of its proper divisors (68327).

131300713 is an equidigital number, since it uses as much as digits as its factorization.

131300713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68326.

The product of its (nonzero) digits is 189, while the sum is 19.

The square root of 131300713 is about 11458.6523204084. The cubic root of 131300713 is about 508.2636233232.

Adding to 131300713 its reverse (317003131), we get a palindrome (448303844).

The spelling of 131300713 in words is "one hundred thirty-one million, three hundred thousand, seven hundred thirteen".

Divisors: 1 1979 66347 131300713