71397900
71,397,900 is an even composite number composed of five prime numbers multiplied together.
71397900 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred sixty-two divisors.
Prime factorization of 71397900:
22 × 32 × 52 × 72 × 1619
(2 × 2 × 3 × 3 × 5 × 5 × 7 × 7 × 1619)See below for interesting mathematical facts about the number 71397900 from the Numbermatics database.
Names of 71397900
- Cardinal: 71397900 can be written as Seventy-one million, three hundred ninety-seven thousand, nine hundred.
Scientific notation
- Scientific notation: 7.13979 × 107
Factors of 71397900
Divisors of 71397900
- Number of divisors d(n): 162
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Complete list of divisors:
1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 25 28 30 35 36 42 45 49 50 60 63 70 75 84 90 98 100 105 126 140 147 150 175 180 196 210 225 245 252 294 300 315 350 420 441 450 490 525 588 630 700 735 882 900 980 1050 1225 1260 1470 1575 1619 1764 2100 2205 2450 2940 3150 3238 3675 4410 4857 4900 6300 6476 7350 8095 8820 9714 11025 11333 14571 14700 16190 19428 22050 22666 24285 29142 32380 33999 40475 44100 45332 48570 56665 58284 67998 72855 79331 80950 97140 101997 113330 121425 135996 145710 158662 161900 169995 203994 226660 237993 242850 283325 291420 317324 339990 364275 396655 407988 475986 485700 509985 566650 679980 713979 728550 793310 849975 951972 1019970 1133300 1189965 1427958 1457100 1586620 1699950 1983275 2039940 2379930 2549925 2855916 3399900 3569895 3966550 4759860 5099850 5949825 7139790 7933100 10199700 11899650 14279580 17849475 23799300 35698950 71397900
- Sum of all divisors σ(n): 260491140
- Sum of proper divisors (its aliquot sum) s(n): 189093240
- 71397900 is an abundant number, because the sum of its proper divisors (189093240) is greater than itself. Its abundance is 117695340
Bases of 71397900
- Binary: 1000100000101110010000011002
- Hexadecimal: 0x441720C
- Base-36: 16IAZ0
Squares and roots of 71397900
- 71397900 squared (713979002) is 5097660124410000
- 71397900 cubed (713979003) is 363962227796612739000000
-
The
square root of 71397900 is 8449.7278062669 -
The
cube root of 71397900 is 414.8538702617
Scales and comparisons
How big is 71397900?- 71,397,900 seconds is equal to 2 years, 14 weeks, 8 hours, 45 minutes.
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To count from 1 to 71,397,900 would take you about three 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 71397900 cubic inches would be around 34.6 feet tall.
Recreational maths with 71397900
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