21090447360

Names of 21090447360

• Cardinal: 21090447360 can be written as Twenty-one billion, ninety million, four hundred forty-seven thousand, three hundred sixty.

Scientific notation

• Scientific notation: 2.109044736 × 10¹⁰

Factors of 21090447360

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 18
• Sum of prime factors: 940

Divisors of 21090447360

• Number of divisors d(n): 416
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 43 45 48 54 60 64 72 80 86 90 96 108 120 128 129 135 144 160 172 180 192 215 216 240 256 258 270 288 320 344 360 384 387 430 432 480 512 516 540 576 640 645 688 720 768 774 860 864 887 960 1024 1032 1080 1152 1161 1280 1290 1376 1440 1536 1548 1720 1728 1774 1920 1935 2048 2064 2160 2304 2322 2560 2580 2661 2752 2880 3072 3096 3440 3456 3548 3840 3870 4096 4128 4320 4435 4608 4644 5120 5160 5322 5504 5760 5805 6144 6192 6880 6912 7096 7680 7740 7983 8256 8640 8870 9216 9288 10240 10320 10644 11008 11520 11610 12288 12384 13305 13760 13824 14192 15360 15480 15966 16512 17280 17740 18432 18576 20480 20640 21288 22016 23040 23220 23949 24768 26610 27520 27648 28384 30720 30960 31932 33024 34560 35480 36864 37152 38141 39915 41280 42576 44032 46080 46440 47898 49536 53220 55040 55296 56768 61440 61920 63864 66048 69120 70960 74304 76282 79830 82560 85152 88064 92160 92880 95796 99072 106440 110080 110592 113536 114423 119745 123840 127728 132096 138240 141920 148608 152564 159660 165120 170304 176128 184320 185760 190705 191592 198144 212880 220160 227072 228846 239490 247680 255456 264192 276480 283840 297216 305128 319320 330240 340608 343269 371520 381410 383184 396288 425760 440320 454144 457692 478980 495360 510912 528384 552960 567680 572115 594432 610256 638640 660480 681216 686538 743040 762820 766368 792576 851520 880640 908288 915384 957960 990720 1021824 1029807 1135360 1144230 1188864 1220512 1277280 1320960 1362432 1373076 1486080 1525640 1532736 1585152 1703040 1716345 1816576 1830768 1915920 1981440 2043648 2059614 2270720 2288460 2377728 2441024 2554560 2641920 2724864 2746152 2972160 3051280 3065472 3406080 3432690 3633152 3661536 3831840 3962880 4087296 4119228 4541440 4576920 4755456 4882048 5109120 5149035 5449728 5492304 5944320 6102560 6130944 6812160 6865380 7323072 7663680 7925760 8174592 8238456 9082880 9153840 9764096 10218240 10298070 10899456 10984608 11888640 12205120 12261888 13624320 13730760 14646144 15327360 16349184 16476912 18165760 18307680 19528192 20436480 20596140 21969216 23777280 24410240 24523776 27248640 27461520 29292288 30654720 32698368 32953824 36615360 39056384 40872960 41192280 43938432 48820480 49047552 54497280 54923040 58584576 61309440 65907648 73230720 78112768 81745920 82384560 87876864 97640960 98095104 109846080 117169152 122618880 131815296 146461440 156225536 163491840 164769120 175753728 195281920 219692160 234338304 245237760 263630592 292922880 329538240 351507456 390563840 439384320 468676608 490475520 527261184 585845760 659076480 703014912 781127680 878768640 1054522368 1171691520 1318152960 1406029824 1757537280 2109044736 2343383040 2636305920 3515074560 4218089472 5272611840 7030149120 10545223680 21090447360
• Sum of all divisors σ(n): 76809300480
• Sum of proper divisors (its aliquot sum) s(n): 55718853120
• 21090447360 is an abundant number, because the sum of its proper divisors (55718853120) is greater than itself. Its abundance is 34628405760

Bases of 21090447360

• Binary: 10011101001000101101011000000000000₂
• Hexadecimal: 0x4E916B000
• Base-36: 9OSPHC0

Squares and roots of 21090447360

• 21090447360 squared (21090447360²) is 444806969844930969600
• 21090447360 cubed (21090447360³) is 9381177982875623977182560256000
• The square root of 21090447360 is 145225.5051979507
• The cube root of 21090447360 is 2762.8794146193

Scales and comparisons

• 21,090,447,360 seconds is equal to 670 years, 31 weeks, 5 days, 9 hours, 36 minutes.
• To count from 1 to 21,090,447,360 would take you about one thousand, three hundred forty-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 21090447360 cubic inches would be around 230.2 feet tall.

Recreational maths with 21090447360

• 21090447360 backwards is 06374409012
• 21090447360 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21090447360's digits is 36
• More coming soon!