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320125013 = 1371346831
BaseRepresentation
bin10011000101001…
…011100001010101
3211022101000221222
4103011023201111
51123423000023
651433220125
710635006035
oct2305134125
9738330858
10320125013
1115477a72a
128b261645
13514260b0
14307318c5
151d186cc8
hex1314b855

320125013 has 8 divisors (see below), whose sum is σ = 349606656. Its totient is φ = 291337200.

The previous prime is 320124979. The next prime is 320125021. The reversal of 320125013 is 310521023.

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 320125013 - 214 = 320108629 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320124982 and 320125000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320125033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172493 + ... + 174338.

It is an arithmetic number, because the mean of its divisors is an integer number (43700832).

Almost surely, 2320125013 is an apocalyptic number.

It is an amenable number.

320125013 is a deficient number, since it is larger than the sum of its proper divisors (29481643).

320125013 is a wasteful number, since it uses less digits than its factorization.

320125013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346915.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 320125013 is about 17892.0376983730. The cubic root of 320125013 is about 684.0794375839.

Adding to 320125013 its reverse (310521023), we get a palindrome (630646036).

The spelling of 320125013 in words is "three hundred twenty million, one hundred twenty-five thousand, thirteen".

Divisors: 1 13 71 923 346831 4508803 24625001 320125013