81342058240

Names of 81342058240

• Cardinal: 81342058240 can be written as Eighty-one billion, three hundred forty-two million, fifty-eight thousand, two hundred forty.

Scientific notation

• Scientific notation: 8.134205824 × 10¹⁰

Factors of 81342058240

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 193

Divisors of 81342058240

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 4 5 8 10 16 19 20 29 32 38 40 41 58 64 76 80 82 95 97 116 128 145 152 160 164 190 194 205 232 256 290 304 320 328 380 388 410 464 485 551 580 608 640 656 760 776 779 820 841 928 970 1102 1160 1189 1216 1280 1312 1520 1552 1558 1640 1682 1843 1856 1940 2204 2320 2378 2432 2624 2755 2813 3040 3104 3116 3280 3364 3686 3712 3880 3895 3977 4205 4408 4640 4756 4864 5248 5510 5626 5945 6080 6208 6232 6560 6728 7372 7424 7760 7790 7954 8410 8816 9215 9280 9512 10496 11020 11252 11890 12160 12416 12464 13120 13456 14065 14744 15520 15580 15908 15979 16820 17632 18430 18560 19024 19885 22040 22504 22591 23780 24320 24832 24928 26240 26912 28130 29488 31040 31160 31816 31958 33640 34481 35264 36860 37120 38048 39770 44080 45008 45182 47560 49856 52480 53447 53824 56260 58976 62080 62320 63632 63916 67280 68962 70528 73720 75563 76096 79540 79895 81577 88160 90016 90364 95120 99712 106894 107648 112520 112955 115333 117952 124160 124640 127264 127832 134560 137924 141056 147440 151126 152192 159080 159790 163154 172405 176320 180032 180728 190240 199424 213788 215296 225040 225910 230666 235904 249280 254528 255664 267235 269120 275848 294880 302252 304384 318160 319580 326308 344810 352640 360064 361456 377815 380480 407885 427576 450080 451820 461332 471808 498560 509056 511328 534470 538240 551696 576665 589760 604504 636320 639160 652616 655139 689620 705280 720128 722912 755630 760960 815770 855152 900160 903640 922664 997120 1018112 1022656 1068940 1076480 1103392 1153330 1179520 1209008 1272640 1278320 1305232 1310278 1379240 1445824 1511260 1521920 1549963 1631540 1710304 1800320 1807280 1845328 2045312 2137880 2191327 2206784 2306660 2359040 2418016 2545280 2556640 2610464 2620556 2758480 2891648 3022520 3099926 3263080 3275695 3344657 3420608 3600640 3614560 3690656 4090624 4275760 4382654 4413568 4613320 4836032 5090560 5113280 5220928 5241112 5516960 5783296 6045040 6199852 6526160 6551390 6689314 6841216 7229120 7381312 7749815 8551520 8765308 8827136 9226640 9672064 10226560 10441856 10482224 10956635 11033920 12090080 12399704 13052320 13102780 13378628 13682432 14458240 14762624 15499630 16723285 17103040 17530616 18453280 19344128 20453120 20883712 20964448 21913270 22067840 24180160 24799408 26104640 26205560 26757256 28916480 29525248 30999260 33446570 34206080 35061232 36906560 41928896 43826540 44135680 48360320 49598816 52209280 52411120 53514512 61998520 63548483 66893140 68412160 70122464 73813120 83857792 87653080 96720640 99197632 104418560 104822240 107029024 123997040 127096966 133786280 140244928 147626240 167715584 175306160 198395264 209644480 214058048 247994080 254193932 267572560 280489856 317742415 350612320 396790528 419288960 428116096 495988160 508387864 535145120 560979712 635484830 701224640 838577920 856232192 991976320 1016775728 1070290240 1270969660 1402449280 1983952640 2033551456 2140580480 2541939320 2804898560 4067102912 4281160960 5083878640 8134205824 10167757280 16268411648 20335514560 40671029120 81342058240
• Sum of all divisors σ(n): 219834407520
• Sum of proper divisors (its aliquot sum) s(n): 138492349280
• 81342058240 is an abundant number, because the sum of its proper divisors (138492349280) is greater than itself. Its abundance is 57150291040

Bases of 81342058240

• Binary: 1001011110000010111010100111100000000₂
• Hexadecimal: 0x12F05D4F00
• Base-36: 11D8YLTS

Squares and roots of 81342058240

• 81342058240 squared (81342058240²) is 6616530438719551897600
• 81342058240 cubed (81342058240³) is 538202204293058541481281716224000
• The square root of 81342058240 is 285205.2913955139
• The cube root of 81342058240 is 4332.8306928365

Scales and comparisons

• 81,342,058,240 seconds is equal to 2,586 years, 22 weeks, 1 day, 10 minutes, 40 seconds.
• To count from 1 to 81,342,058,240 would take you about five thousand, one hundred seventy-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 81342058240 cubic inches would be around 361.1 feet tall.

Recreational maths with 81342058240

• 81342058240 backwards is 04285024318
• The number of decimal digits it has is: 11
• The sum of 81342058240's digits is 37
• More coming soon!