20912807040

Names of 20912807040

• Cardinal: 20912807040 can be written as Twenty billion, nine hundred twelve million, eight hundred seven thousand and forty.

Scientific notation

• Scientific notation: 2.091280704 × 10¹⁰

Factors of 20912807040

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 452

Divisors of 20912807040

• Number of divisors d(n): 512
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 17 20 23 24 30 32 34 40 46 48 51 60 64 68 69 80 85 89 92 96 102 115 120 128 136 138 160 170 178 184 192 204 230 240 255 267 272 276 313 320 340 345 356 368 384 391 408 445 460 480 510 534 544 552 626 640 680 690 712 736 782 816 890 920 939 960 1020 1068 1088 1104 1173 1252 1335 1360 1380 1424 1472 1513 1564 1565 1632 1780 1840 1878 1920 1955 2040 2047 2136 2176 2208 2346 2504 2670 2720 2760 2848 2944 3026 3128 3130 3264 3560 3680 3756 3910 4080 4094 4272 4416 4539 4692 4695 5008 5321 5340 5440 5520 5696 5865 6052 6141 6256 6260 6528 7120 7199 7360 7512 7565 7820 8160 8188 8544 8832 9078 9384 9390 10016 10235 10642 10680 10880 11040 11392 11730 12104 12282 12512 12520 14240 14398 14720 15024 15130 15640 15963 16320 16376 17088 18156 18768 18780 20032 20470 21284 21360 21597 22080 22695 23460 24208 24564 25024 25040 26605 27857 28480 28796 30048 30260 30705 31280 31926 32640 32752 34176 34799 35995 36312 37536 37560 40064 40940 42568 42720 43194 44160 45390 46920 48416 49128 50048 50080 53210 55714 56960 57592 60096 60520 61410 62560 63852 65504 69598 71990 72624 75072 75120 79815 81880 83571 85136 85440 86388 90780 93840 96832 98256 100160 104397 106420 107985 111428 115184 120192 121040 122383 122820 125120 127704 131008 139196 139285 143980 145248 150144 150240 159630 163760 167142 170272 170880 172776 173995 181560 187680 193664 196512 200320 208794 212840 215970 222856 230368 242080 244766 245640 250240 255408 262016 278392 278570 287960 290496 300480 319260 327520 334284 340544 345552 347990 363120 367149 375360 393024 417588 417855 425680 431940 445712 460736 473569 484160 489532 491280 510816 521985 556784 557140 575920 580992 600960 611915 638520 640711 655040 668568 681088 691104 695980 726240 734298 750720 786048 835176 835710 851360 863880 891424 921472 947138 968320 979064 982560 1021632 1043970 1113568 1114280 1151840 1223830 1277040 1281422 1310080 1337136 1382208 1391960 1420707 1452480 1468596 1670352 1671420 1702720 1727760 1782848 1835745 1894276 1922133 1958128 1965120 2043264 2087940 2227136 2228560 2303680 2367845 2447660 2554080 2562844 2674272 2764416 2783920 2841414 2904960 2937192 3203555 3340704 3342840 3405440 3455520 3565696 3671490 3788552 3844266 3916256 3930240 4175880 4454272 4457120 4607360 4735690 4895320 5108160 5125688 5348544 5567840 5682828 5874384 6407110 6681408 6685680 6911040 7103535 7342980 7577104 7688532 7832512 8351760 8914240 9471380 9610665 9790640 10216320 10251376 10697088 10892087 11135680 11365656 11748768 12814220 13362816 13371360 13822080 14207070 14685960 15154208 15377064 15665024 16703520 17828480 18942760 19221330 19581280 20502752 21784174 22271360 22731312 23497536 25628440 26742720 28414140 29371920 30308416 30754128 32676261 33407040 37885520 38442660 39162560 41005504 43568348 45462624 46995072 51256880 53485440 54460435 56828280 58743840 60616832 61508256 65352522 66814080 75771040 76885320 78325120 82011008 87136696 90925248 102513760 108920870 113656560 117487680 123016512 130705044 151542080 153770640 163381305 174273392 181850496 205027520 217841740 227313120 234975360 246033024 261410088 303084160 307541280 326762610 348546784 410055040 435683480 454626240 522820176 615082560 653525220 697093568 871366960 909252480 1045640352 1230165120 1307050440 1394187136 1742733920 2091280704 2614100880 3485467840 4182561408 5228201760 6970935680 10456403520 20912807040
• Sum of all divisors σ(n): 74714918400
• Sum of proper divisors (its aliquot sum) s(n): 53802111360
• 20912807040 is an abundant number, because the sum of its proper divisors (53802111360) is greater than itself. Its abundance is 32889304320

Bases of 20912807040

• Binary: 10011011110100000000001110010000000₂
• Hexadecimal: 0x4DE801C80
• Base-36: 9LUY16O

Squares and roots of 20912807040

• 20912807040 squared (20912807040²) is 437345498292273561600
• 20912807040 cubed (20912807040³) is 9146122015598966516634353664000
• The square root of 20912807040 is 144612.6102385265
• The cube root of 20912807040 is 2755.1004863421

Scales and comparisons

• 20,912,807,040 seconds is equal to 664 years, 50 weeks, 9 hours, 4 minutes.
• To count from 1 to 20,912,807,040 would take you about one thousand, three hundred twenty-nine 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 20912807040 cubic inches would be around 229.6 feet tall.

Recreational maths with 20912807040

• 20912807040 backwards is 04070821902
• The number of decimal digits it has is: 11
• The sum of 20912807040's digits is 33
• More coming soon!