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130571 = 723811
BaseRepresentation
bin11111111000001011
320122002222
4133320023
513134241
62444255
71052450
oct377013
9218088
10130571
118a111
126368b
134757c
1435827
1528a4b
hex1fe0b

130571 has 8 divisors (see below), whose sum is σ = 155904. Its totient is φ = 106920.

The previous prime is 130553. The next prime is 130579. The reversal of 130571 is 175031.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-130571 is a prime.

It is not an unprimeable number, because it can be changed into a prime (130579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 245 + ... + 566.

It is an arithmetic number, because the mean of its divisors is an integer number (19488).

2130571 is an apocalyptic number.

130571 is a deficient number, since it is larger than the sum of its proper divisors (25333).

130571 is an equidigital number, since it uses as much as digits as its factorization.

130571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841.

The product of its (nonzero) digits is 105, while the sum is 17.

The square root of 130571 is about 361.3460944856. The cubic root of 130571 is about 50.7320303290.

The spelling of 130571 in words is "one hundred thirty thousand, five hundred seventy-one".

Divisors: 1 7 23 161 811 5677 18653 130571