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320044017 = 3981710867
BaseRepresentation
bin10011000100110…
…111101111110001
3211022012220212010
4103010313233301
51123412402032
651431353133
710634220636
oct2304675761
9738186763
10320044017
11154724897
128b2227a9
13513c8277
143071018d
151d16cccc
hex13137bf1

320044017 has 8 divisors (see below), whose sum is σ = 426808096. Its totient is φ = 213321312.

The previous prime is 320044007. The next prime is 320044027. The reversal of 320044017 is 710440023.

It is an interprime number because it is at equal distance from previous prime (320044007) and next prime (320044027).

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

It is not a de Polignac number, because 320044017 - 26 = 320043953 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320043984 and 320044002.

It is not an unprimeable number, because it can be changed into a prime (320044007) 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, 24018 + ... + 34884.

It is an arithmetic number, because the mean of its divisors is an integer number (53351012).

Almost surely, 2320044017 is an apocalyptic number.

It is an amenable number.

320044017 is a deficient number, since it is larger than the sum of its proper divisors (106764079).

320044017 is a wasteful number, since it uses less digits than its factorization.

320044017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20687.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 320044017 is about 17889.7740902450. The cubic root of 320044017 is about 684.0217389042.

The spelling of 320044017 in words is "three hundred twenty million, forty-four thousand, seventeen".

Divisors: 1 3 9817 10867 29451 32601 106681339 320044017