661131520
661,131,520 is an even composite number composed of five prime numbers multiplied together.
661131520 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of two hundred sixteen divisors.
Prime factorization of 661131520:
28 × 5 × 72 × 83 × 127
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 7 × 7 × 83 × 127)See below for interesting mathematical facts about the number 661131520 from the Numbermatics database.
Names of 661131520
- Cardinal: 661131520 can be written as Six hundred sixty-one million, one hundred thirty-one thousand, five hundred twenty.
Scientific notation
- Scientific notation: 6.6113152 × 108
Factors of 661131520
Divisors of 661131520
- Number of divisors d(n): 216
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Complete list of divisors:
1 2 4 5 7 8 10 14 16 20 28 32 35 40 49 56 64 70 80 83 98 112 127 128 140 160 166 196 224 245 254 256 280 320 332 392 415 448 490 508 560 581 635 640 664 784 830 889 896 980 1016 1120 1162 1270 1280 1328 1568 1660 1778 1792 1960 2032 2240 2324 2540 2656 2905 3136 3320 3556 3920 4064 4067 4445 4480 4648 5080 5312 5810 6223 6272 6640 7112 7840 8128 8134 8890 8960 9296 10160 10541 10624 11620 12446 12544 13280 14224 15680 16256 16268 17780 18592 20320 20335 21082 21248 23240 24892 26560 28448 31115 31360 32512 32536 35560 37184 40640 40670 42164 46480 49784 52705 53120 56896 62230 62720 65072 71120 73787 74368 81280 81340 84328 92960 99568 105410 106240 113792 124460 130144 142240 147574 148736 162560 162680 168656 185920 199136 210820 227584 248920 260288 284480 295148 325360 337312 368935 371840 398272 421640 497840 516509 520576 568960 590296 650720 674624 737870 743680 796544 843280 995680 1033018 1041152 1137920 1180592 1301440 1349248 1475740 1593088 1686560 1991360 2066036 2361184 2582545 2602880 2698496 2951480 3373120 3982720 4132072 4722368 5165090 5205760 5902960 6746240 7965440 8264144 9444736 10330180 11805920 13492480 16528288 18889472 20660360 23611840 33056576 41320720 47223680 66113152 82641440 94447360 132226304 165282880 330565760 661131520
- Sum of all divisors σ(n): 1879041024
- Sum of proper divisors (its aliquot sum) s(n): 1217909504
- 661131520 is an abundant number, because the sum of its proper divisors (1217909504) is greater than itself. Its abundance is 556777984
Bases of 661131520
- Binary: 1001110110100000010001000000002
- Hexadecimal: 0x27681100
- Base-36: AXMCCG
Squares and roots of 661131520
- 661131520 squared (6611315202) is 437094886737510400
- 661131520 cubed (6611315203) is 288977206852998091767808000
-
The
square root of 661131520 is 25712.4779047061 -
The
cube root of 661131520 is 871.1560445455
Scales and comparisons
How big is 661131520?- 661,131,520 seconds is equal to 21 years, 1 week, 23 hours, 38 minutes, 40 seconds.
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To count from 1 to 661,131,520 would take you about thirty-one 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 661131520 cubic inches would be around 72.6 feet tall.
Recreational maths with 661131520
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