918428849728

Names of 918428849728

• Cardinal: 918428849728 can be written as Nine hundred eighteen billion, four hundred twenty-eight million, eight hundred forty-nine thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 9.18428849728 × 10¹¹

Factors of 918428849728

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 102

Divisors of 918428849728

• Number of divisors d(n): 280
• Complete list of divisors:
  1 2 4 8 13 16 19 26 31 32 37 38 52 62 64 74 76 104 124 148 152 208 247 248 296 304 403 416 481 494 496 589 592 608 703 806 832 962 988 992 1147 1178 1184 1216 1369 1406 1612 1924 1976 1984 2294 2356 2368 2738 2812 3224 3848 3952 4588 4712 5476 5624 6448 7657 7696 7904 9139 9176 9424 10952 11248 12896 14911 15314 15392 15808 17797 18278 18352 18848 21793 21904 22496 25792 26011 29822 30628 30784 35594 36556 36704 37696 42439 43586 43808 44992 50653 52022 59644 61256 71188 73112 73408 84878 87172 87616 101306 104044 119288 122512 142376 146224 169756 174344 202612 208088 238576 245024 283309 284752 292448 338143 339512 348688 405224 416176 477152 490048 551707 566618 569504 584896 658489 676286 679024 697376 806341 810448 832352 954304 962407 1103414 1133236 1139008 1316978 1352572 1358048 1394752 1570243 1612682 1620896 1664704 1874161 1924814 2206828 2266472 2633956 2705144 2716096 3140486 3225364 3241792 3748322 3849628 4413656 4532944 5267912 5410288 6280972 6450728 7496644 7699256 8827312 9065888 10482433 10535824 10820576 12511291 12561944 12901456 14993288 15398512 17654624 18131776 20413159 20964866 21071648 21641152 24364093 25022582 25123888 25802912 29834617 29986576 30797024 35309248 35609059 40826318 41929732 42143296 48728186 50045164 50247776 51605824 58098991 59669234 59973152 61594048 71218118 81652636 83859464 97456372 100090328 100495552 116197982 119338468 119946304 142436236 163305272 167718928 194912744 200180656 232395964 238676936 284872472 326610544 335437856 387850021 389825488 400361312 462917767 464791928 477353872 569744944 653221088 670875712 755286883 775700042 779650976 800722624 925835534 929583856 954707744 1103880829 1139489888 1306442176 1510573766 1551400084 1559301952 1851671068 1859167712 1909415488 2207761658 2278979776 3021147532 3102800168 3703342136 3718335424 4415523316 6042295064 6205600336 7406684272 8831046632 12084590128 12411200672 14350450777 14813368544 17662093264 24169180256 24822401344 28700901554 29626737088 35324186528 48338360512 57401803108 70648373056 114803606216 229607212432 459214424864 918428849728
• Sum of all divisors σ(n): 2191885400320
• Sum of proper divisors (its aliquot sum) s(n): 1273456550592
• 918428849728 is an abundant number, because the sum of its proper divisors (1273456550592) is greater than itself. Its abundance is 355027700864

Bases of 918428849728

• Binary: 1101010111010110101000000001011001000000₂
• Hexadecimal: 0xD5D6A01640
• Base-36: BPX4TNWG

Squares and roots of 918428849728

• 918428849728 squared (918428849728²) is 843511552012697205673984
• 918428849728 cubed (918428849728³) is 774705344447301537857916960095076352
• The square root of 918428849728 is 958346.9359934323
• The cube root of 918428849728 is 9720.3485741535

Scales and comparisons

• 918,428,849,728 seconds is equal to 29,203 years, 10 weeks, 1 day, 12 hours, 55 minutes, 28 seconds.
• To count from 1 to 918,428,849,728 would take you about fifty-eight thousand, four hundred six 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 918428849728 cubic inches would be around 810 feet tall.

Recreational maths with 918428849728

• 918428849728 backwards is 827948824819
• The number of decimal digits it has is: 12
• The sum of 918428849728's digits is 70
• More coming soon!