81327697812
81,327,697,812 is an even composite number composed of five prime numbers multiplied together.
81327697812 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of two hundred eighty-eight divisors.
Prime factorization of 81327697812:
22 × 37 × 19 × 672 × 109
(2 × 2 × 3 × 3 × 3 × 3 × 3 × 3 × 3 × 19 × 67 × 67 × 109)See below for interesting mathematical facts about the number 81327697812 from the Numbermatics database.
Names of 81327697812
- Cardinal: 81327697812 can be written as Eighty-one billion, three hundred twenty-seven million, six hundred ninety-seven thousand, eight hundred twelve.
Scientific notation
- Scientific notation: 8.1327697812 × 1010
Factors of 81327697812
Divisors of 81327697812
- Number of divisors d(n): 288
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Complete list of divisors:
1 2 3 4 6 9 12 18 19 27 36 38 54 57 67 76 81 108 109 114 134 162 171 201 218 228 243 268 324 327 342 402 436 486 513 603 654 684 729 804 972 981 1026 1206 1273 1308 1458 1539 1809 1962 2052 2071 2187 2412 2546 2916 2943 3078 3618 3819 3924 4142 4374 4489 4617 5092 5427 5886 6156 6213 7236 7303 7638 8284 8748 8829 8978 9234 10854 11457 11772 12426 13467 13851 14606 15276 16281 17658 17956 18468 18639 21708 21909 22914 24852 26487 26934 27702 29212 32562 34371 35316 37278 40401 41553 43818 45828 48843 52974 53868 55404 55917 65124 65727 68742 74556 79461 80802 83106 85291 87636 97686 103113 105948 111834 121203 131454 137484 138757 146529 158922 161604 166212 167751 170582 195372 197181 206226 223668 238383 242406 255873 262908 277514 293058 309339 317844 335502 341164 363609 394362 412452 416271 476766 484812 489301 503253 511746 555028 586116 591543 618678 671004 727218 767619 788724 832542 928017 953532 978602 1006506 1023492 1090827 1183086 1237356 1248813 1454436 1467903 1509759 1535238 1665084 1774629 1856034 1957204 2013012 2181654 2302857 2366172 2497626 2784051 2935806 3019518 3070476 3272481 3549258 3712068 3746439 4363308 4403709 4529277 4605714 4995252 5323887 5568102 5871612 6039036 6544962 6908571 7098516 7492878 8807418 9058554 9211428 9296719 9817443 10647774 11136204 11239317 13089924 13211127 13817142 14985756 15971661 17614836 18117108 18593438 19634886 20725713 21295548 22478634 26422254 27634284 27890157 31943322 33717951 37186876 39269772 39633381 41451426 44957268 52844508 55780314 62177139 63886644 67435902 79266762 82902852 83670471 101153853 111560628 118900143 124354278 134871804 158533524 167340942 186531417 202307706 237800286 248708556 251011413 303461559 334681884 356700429 373062834 404615412 475600572 502022826 606923118 713400858 746125668 753034239 1004045652 1070101287 1213846236 1426801716 1506068478 2140202574 2259102717 3012136956 4280405148 4518205434 6777308151 9036410868 13554616302 20331924453 27109232604 40663848906 81327697812
- Sum of all divisors σ(n): 230183184000
- Sum of proper divisors (its aliquot sum) s(n): 148855486188
- 81327697812 is an abundant number, because the sum of its proper divisors (148855486188) is greater than itself. Its abundance is 67527788376
Bases of 81327697812
- Binary: 10010111011111000001000101111100101002
- Hexadecimal: 0x12EF822F94
- Base-36: 11D0ET90
Squares and roots of 81327697812
- 81327697812 squared (813276978122) is 6614194431399989587344
- 81327697812 cubed (813276978123) is 537917205986711517259459411691328
-
The
square root of 81327697812 is 285180.1146854385 -
The
cube root of 81327697812 is 4332.5756998413
Scales and comparisons
How big is 81327697812?- 81,327,697,812 seconds is equal to 2,585 years, 50 weeks, 2 days, 19 hours, 10 minutes, 12 seconds.
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To count from 1 to 81,327,697,812 would take you about five thousand, one hundred seventy-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 81327697812 cubic inches would be around 361 feet tall.
Recreational maths with 81327697812
- 81327697812 backwards is 21879672318
- 81327697812 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 81327697812's digits is 54
- More coming soon!
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