805000000
805,000,000 is an even composite number composed of four prime numbers multiplied together.
805000000 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of two hundred twenty-four divisors.
Prime factorization of 805000000:
26 × 57 × 7 × 23
(2 × 2 × 2 × 2 × 2 × 2 × 5 × 5 × 5 × 5 × 5 × 5 × 5 × 7 × 23)See below for interesting mathematical facts about the number 805000000 from the Numbermatics database.
Names of 805000000
- Cardinal: 805000000 can be written as Eight hundred five million.
Scientific notation
- Scientific notation: 8.05 × 108
Factors of 805000000
Divisors of 805000000
- Number of divisors d(n): 224
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Complete list of divisors:
1 2 4 5 7 8 10 14 16 20 23 25 28 32 35 40 46 50 56 64 70 80 92 100 112 115 125 140 160 161 175 184 200 224 230 250 280 320 322 350 368 400 448 460 500 560 575 625 644 700 736 800 805 875 920 1000 1120 1150 1250 1288 1400 1472 1600 1610 1750 1840 2000 2240 2300 2500 2576 2800 2875 3125 3220 3500 3680 4000 4025 4375 4600 5000 5152 5600 5750 6250 6440 7000 7360 8000 8050 8750 9200 10000 10304 11200 11500 12500 12880 14000 14375 15625 16100 17500 18400 20000 20125 21875 23000 25000 25760 28000 28750 31250 32200 35000 36800 40000 40250 43750 46000 50000 51520 56000 57500 62500 64400 70000 71875 78125 80500 87500 92000 100000 100625 109375 115000 125000 128800 140000 143750 156250 161000 175000 184000 200000 201250 218750 230000 250000 257600 280000 287500 312500 322000 350000 359375 402500 437500 460000 500000 503125 546875 575000 625000 644000 700000 718750 805000 875000 920000 1000000 1006250 1093750 1150000 1250000 1288000 1400000 1437500 1610000 1750000 1796875 2012500 2187500 2300000 2500000 2515625 2875000 3220000 3500000 3593750 4025000 4375000 4600000 5000000 5031250 5750000 6440000 7000000 7187500 8050000 8750000 10062500 11500000 12578125 14375000 16100000 17500000 20125000 23000000 25156250 28750000 32200000 35000000 40250000 50312500 57500000 80500000 100625000 115000000 161000000 201250000 402500000 805000000
- Sum of all divisors σ(n): 2381243904
- Sum of proper divisors (its aliquot sum) s(n): 1576243904
- 805000000 is an abundant number, because the sum of its proper divisors (1576243904) is greater than itself. Its abundance is 771243904
Bases of 805000000
- Binary: 1011111111101101010011010000002
- Hexadecimal: 0x2FFB5340
- Base-36: DB9XZ4
Squares and roots of 805000000
- 805000000 squared (8050000002) is 648025000000000000
- 805000000 cubed (8050000003) is 521660125000000000000000000
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The
square root of 805000000 is 28372.5219182221 -
The
cube root of 805000000 is 930.2477468451
Scales and comparisons
How big is 805000000?- 805,000,000 seconds is equal to 25 years, 31 weeks, 3 hours, 6 minutes, 40 seconds.
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To count from 1 to 805,000,000 would take you about thirty-eight years!
This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)
- A cube with a volume of 805000000 cubic inches would be around 77.5 feet tall.
Recreational maths with 805000000
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