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320485068 = 223231287173
BaseRepresentation
bin10011000110100…
…011011011001100
3211100001022212100
4103012203123030
51124021010233
651445035100
710641035541
oct2306433314
9740038770
10320485068
111549a61a2
128b3b5a90
1351520c47
14307c6bc8
151d208813
hex131a36cc

320485068 has 36 divisors (see below), whose sum is σ = 836250688. Its totient is φ = 103381920.

The previous prime is 320485051. The next prime is 320485073. The reversal of 320485068 is 860584023.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 142471 + ... + 144702.

Almost surely, 2320485068 is an apocalyptic number.

It is an amenable number.

320485068 is an abundant number, since it is smaller than the sum of its proper divisors (515765620).

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

320485068 is a wasteful number, since it uses less digits than its factorization.

320485068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287214 (or 287209 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 320485068 is about 17902.0967487052. The cubic root of 320485068 is about 684.3358102786.

The spelling of 320485068 in words is "three hundred twenty million, four hundred eighty-five thousand, sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 31 36 62 93 124 186 279 372 558 1116 287173 574346 861519 1148692 1723038 2584557 3446076 5169114 8902363 10338228 17804726 26707089 35609452 53414178 80121267 106828356 160242534 320485068