81002133800

Names of 81002133800

• Cardinal: 81002133800 can be written as Eighty-one billion, two million, one hundred thirty-three thousand, eight hundred.

Scientific notation

• Scientific notation: 8.10021338 × 10¹⁰

Factors of 81002133800

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 348

Divisors of 81002133800

• Number of divisors d(n): 576
• Complete list of divisors:
  1 2 4 5 7 8 10 14 17 19 20 25 28 34 35 38 40 41 50 56 68 70 76 82 85 95 100 119 133 136 140 152 164 170 175 190 200 205 238 257 266 280 287 289 323 328 340 350 380 410 425 475 476 514 532 574 578 595 646 665 680 697 700 760 779 820 850 950 952 1025 1028 1064 1148 1156 1190 1285 1292 1330 1394 1400 1435 1445 1558 1615 1640 1700 1799 1900 2023 2050 2056 2261 2296 2312 2380 2570 2584 2660 2788 2870 2890 2975 3116 3230 3325 3400 3485 3598 3800 3895 4046 4100 4369 4522 4760 4879 4883 5140 5320 5453 5491 5576 5740 5780 5950 6232 6425 6460 6650 6970 7175 7196 7225 7790 8075 8092 8200 8738 8995 9044 9758 9766 10115 10280 10537 10906 10982 11305 11480 11560 11849 11900 12850 12920 13243 13300 13940 14350 14392 14450 15580 16150 16184 17425 17476 17990 18088 19475 19516 19532 20230 21074 21812 21845 21964 22610 23698 23800 24395 24415 25700 26486 26600 27265 27455 27880 28700 28900 30583 31160 32300 34181 34850 34952 35980 38437 38950 39032 39064 40460 42148 43624 43690 43928 44975 45220 47396 48790 48830 50575 51400 52685 52972 54530 54910 56525 57400 57800 59245 61166 64600 66215 68362 69700 71960 73759 74273 76874 77900 80920 82943 83011 84296 87380 89950 90440 92701 94792 97580 97660 101150 105370 105944 109060 109225 109820 113050 118490 121975 122075 122332 132430 136325 136724 137275 139400 147518 148546 152915 153748 155800 165886 166022 170905 174760 179129 179900 185402 192185 195160 195320 200203 202300 210740 218120 218450 219640 225131 226100 236980 243950 244150 244664 263425 264860 272650 273448 274550 295036 296225 297092 305830 307496 331075 331772 332044 341810 358258 359800 368795 370804 371365 384370 400406 404600 414715 415055 421480 436900 450262 452200 463505 473960 487900 488300 519911 526850 529720 545300 549100 581077 590072 592450 594184 611660 662150 663544 664088 683620 716516 737590 741608 742730 764575 768740 800812 829430 830110 854525 873800 895645 900524 927010 960925 975800 976600 1001015 1039822 1053700 1090600 1098200 1125655 1162154 1184900 1223320 1253903 1324300 1367240 1401421 1411187 1433032 1475180 1485460 1529150 1537480 1575917 1601624 1658860 1660220 1709050 1791290 1801048 1843975 1854020 1856825 1921850 2002030 2073575 2075275 2079644 2107400 2251310 2317525 2324308 2369800 2507806 2599555 2648600 2802842 2822374 2905385 2950360 2970920 3045193 3058300 3151834 3317720 3320440 3403451 3418100 3582580 3687950 3708040 3713650 3843700 4004060 4147150 4150550 4159288 4478225 4502620 4635050 4648616 5005075 5015612 5199110 5605684 5628275 5644748 5810770 6090386 6116600 6269515 6303668 6806902 6836200 7007105 7055935 7165160 7375900 7427300 7687400 7879585 8008120 8294300 8301100 8956450 9005240 9270100 9878309 10010150 10031224 10398220 11211368 11256550 11289496 11621540 12180772 12539030 12607336 12997775 13613804 14014210 14111870 14526925 14751800 14854600 15225965 15759170 16588600 16602200 17017255 17912900 18540200 19756618 20020300 20796440 21316351 22513100 23243080 23824157 24361544 25078060 25995550 27227608 28028420 28223740 29053850 30451930 31347575 31518340 34034510 35035525 35279675 35825800 39397925 39513236 40040600 42632702 45026200 47648314 49391545 50156120 51991100 56056840 56447480 57858667 58107700 60903860 62695150 63036680 68069020 70071050 70559350 76129825 78795850 79026472 85086275 85265404 95296628 98783090 103982200 106581755 115717334 116215400 119120785 121807720 125390300 136138040 140142100 141118700 152259650 157591700 170172550 170530808 190593256 197566180 213163510 231434668 238241570 246957725 250780600 280284200 282237400 289293335 304519300 315183400 340345100 395132360 405010669 426327020 462869336 476483140 493915450 532908775 578586670 595603925 609038600 680690200 810021338 852654040 952966280 987830900 1065817550 1157173340 1191207850 1446466675 1620042676 1975661800 2025053345 2131635100 2314346680 2382415700 2892933350 3240085352 4050106690 4263270200 4764831400 5785866700 8100213380 10125266725 11571733400 16200426760 20250533450 40501066900 81002133800
• Sum of all divisors σ(n): 247502908800
• Sum of proper divisors (its aliquot sum) s(n): 166500775000
• 81002133800 is an abundant number, because the sum of its proper divisors (166500775000) is greater than itself. Its abundance is 85498641200

Bases of 81002133800

• Binary: 1001011011100000110100111100100101000₂
• Hexadecimal: 0x12DC1A7928
• Base-36: 117MKUG8

Squares and roots of 81002133800

• 81002133800 squared (81002133800²) is 6561345680153102440000
• 81002133800 cubed (81002133800³) is 531483000691813608329986472000000
• The square root of 81002133800 is 284608.7380949503
• The cube root of 81002133800 is 4326.7867040717

Scales and comparisons

• 81,002,133,800 seconds is equal to 2,575 years, 32 weeks, 16 hours, 43 minutes, 20 seconds.
• To count from 1 to 81,002,133,800 would take you about five thousand, one hundred fifty-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 81002133800 cubic inches would be around 360.6 feet tall.

Recreational maths with 81002133800

• 81002133800 backwards is 00833120018
• The number of decimal digits it has is: 11
• The sum of 81002133800's digits is 26
• More coming soon!