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320286016 = 2643181643
BaseRepresentation
bin10011000101110…
…010110101000000
3211022200012211001
4103011302311000
51123443123031
651440501344
710636246321
oct2305626500
9738605731
10320286016
1115487a696
128b31a854
135148146b
1430774448
151d1b9861
hex13172d40

320286016 has 56 divisors (see below), whose sum is σ = 654958304. Its totient is φ = 155312640.

The previous prime is 320286011. The next prime is 320286037. The reversal of 320286016 is 610682023.

320286016 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320286011) 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, 497791 + ... + 498433.

It is an arithmetic number, because the mean of its divisors is an integer number (11695684).

Almost surely, 2320286016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 320286016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (327479152).

320286016 is an abundant number, since it is smaller than the sum of its proper divisors (334672288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320286016 is a wasteful number, since it uses less digits than its factorization.

320286016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 879 (or 869 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 320286016 is about 17896.5364246828. The cubic root of 320286016 is about 684.1941015204.

The spelling of 320286016 in words is "three hundred twenty million, two hundred eighty-six thousand, sixteen".

Divisors: 1 2 4 8 16 32 43 64 86 172 181 344 362 643 688 724 1286 1376 1448 2572 2752 2896 5144 5792 7783 10288 11584 15566 20576 27649 31132 41152 55298 62264 110596 116383 124528 221192 232766 249056 442384 465532 498112 884768 931064 1769536 1862128 3724256 5004469 7448512 10008938 20017876 40035752 80071504 160143008 320286016