81017137152

Names of 81017137152

• Cardinal: 81017137152 can be written as Eighty-one billion, seventeen million, one hundred thirty-seven thousand, one hundred fifty-two.

Scientific notation

• Scientific notation: 8.1017137152 × 10¹⁰

Factors of 81017137152

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 1222

Divisors of 81017137152

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 23 24 28 32 36 42 46 48 56 63 64 69 72 84 92 96 112 126 128 138 144 161 168 184 192 207 224 252 256 276 288 322 336 368 384 414 448 483 504 512 529 552 576 644 672 736 768 828 896 966 1008 1024 1058 1104 1152 1187 1288 1344 1449 1472 1536 1587 1656 1792 1932 2016 2048 2116 2208 2304 2374 2576 2688 2898 2944 3072 3174 3312 3561 3584 3703 3864 4032 4232 4416 4608 4748 4761 5152 5376 5796 5888 6144 6348 6624 7122 7168 7406 7728 8064 8309 8464 8832 9216 9496 9522 10304 10683 10752 11109 11592 11776 12696 13248 14244 14336 14812 15456 16128 16618 16928 17664 18432 18992 19044 20608 21366 21504 22218 23184 23552 24927 25392 26496 27301 28488 29624 30912 32256 33236 33327 33856 35328 37984 38088 41216 42732 43008 44436 46368 47104 49854 50784 52992 54602 56976 59248 61824 64512 66472 66654 67712 70656 74781 75968 76176 81903 82432 85464 88872 92736 99708 101568 105984 109204 113952 118496 123648 129024 132944 133308 135424 141312 149562 151936 152352 163806 164864 170928 177744 185472 191107 199416 203136 211968 218408 227904 236992 245709 247296 265888 266616 270848 299124 303872 304704 327612 329728 341856 355488 370944 382214 398832 406272 423936 436816 455808 473984 491418 494592 531776 533232 541696 573321 598248 607744 609408 627923 655224 683712 710976 741888 764428 797664 812544 873632 911616 947968 982836 989184 1063552 1066464 1083392 1146642 1196496 1215488 1218816 1255846 1310448 1367424 1421952 1483776 1528856 1595328 1625088 1719963 1747264 1823232 1883769 1895936 1965672 2127104 2132928 2293284 2392992 2430976 2437632 2511692 2620896 2734848 2843904 2967552 3057712 3190656 3250176 3439926 3494528 3646464 3767538 3791872 3931344 4254208 4265856 4395461 4586568 4785984 4875264 5023384 5241792 5469696 5651307 5687808 6115424 6381312 6879852 6989056 7292928 7535076 7583744 7862688 8508416 8531712 8790922 9173136 9571968 9750528 10046768 10483584 10939392 11302614 11375616 12230848 12762624 13186383 13759704 13978112 15070152 15725376 17016832 17063424 17581844 18346272 19143936 20093536 20967168 21878784 22605228 22751232 24461696 25525248 26372766 27519408 27956224 30140304 31450752 34126848 35163688 36692544 38287872 39559149 40187072 41934336 45210456 48923392 51050496 52745532 55038816 55912448 60280608 62901504 68253696 70327376 73385088 76575744 79118298 80374144 83868672 90420912 97846784 105491064 110077632 120561216 125803008 140654752 146770176 153151488 158236596 160748288 167737344 180841824 195693568 210982128 220155264 241122432 251606016 281309504 293540352 316473192 321496576 361683648 391387136 421964256 440310528 482244864 503212032 562619008 587080704 632946384 642993152 723367296 843928512 880621056 964489728 1125238016 1174161408 1265892768 1285986304 1446734592 1687857024 1761242112 1928979456 2250476032 2531785536 2893469184 3375714048 3522484224 3857958912 4500952064 5063571072 5786938368 6751428096 9001904128 10127142144 11573876736 13502856192 20254284288 27005712384 40508568576 81017137152
• Sum of all divisors σ(n): 279787828320
• Sum of proper divisors (its aliquot sum) s(n): 198770691168
• 81017137152 is an abundant number, because the sum of its proper divisors (198770691168) is greater than itself. Its abundance is 117753554016

Bases of 81017137152

• Binary: 1001011011100111111110110100000000000₂
• Hexadecimal: 0x12DCFF6800
• Base-36: 117VIF40

Squares and roots of 81017137152

• 81017137152 squared (81017137152²) is 6563776512305978671104
• 81017137152 cubed (81017137152³) is 531778381932569689786419467255808
• The square root of 81017137152 is 284635.0947300771
• The cube root of 81017137152 is 4327.0538258267

Scales and comparisons

• 81,017,137,152 seconds is equal to 2,576 years, 4 weeks, 6 days, 8 hours, 19 minutes, 12 seconds.
• To count from 1 to 81,017,137,152 would take you about five thousand, one hundred fifty-two 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 81017137152 cubic inches would be around 360.6 feet tall.

Recreational maths with 81017137152

• 81017137152 backwards is 25173171018
• 81017137152 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 81017137152's digits is 36
• More coming soon!