2172428720

Names of 2172428720

• Cardinal: 2172428720 can be written as Two billion, one hundred seventy-two million, four hundred twenty-eight thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 2.17242872 × 10⁹

Factors of 2172428720

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 715

Divisors of 2172428720

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 4 5 7 8 10 11 14 16 20 22 28 35 40 44 49 55 56 70 77 80 83 88 98 110 112 140 154 166 176 196 220 245 280 308 332 385 392 415 440 490 539 560 581 607 616 664 770 784 830 880 913 980 1078 1162 1214 1232 1328 1540 1660 1826 1960 2156 2324 2428 2695 2905 3035 3080 3320 3652 3920 4067 4249 4312 4565 4648 4856 5390 5810 6070 6160 6391 6640 6677 7304 8134 8498 8624 9130 9296 9712 10780 11620 12140 12782 13354 14608 16268 16996 18260 20335 21245 21560 23240 24280 25564 26708 29743 31955 32536 33385 33992 36520 40670 42490 43120 44737 46480 46739 48560 50381 51128 53416 59486 63910 65072 66770 67984 73040 81340 84980 89474 93478 100762 102256 106832 118972 127820 133540 148715 162680 169960 178948 186956 201524 223685 233695 237944 251905 255640 267080 297430 325360 327173 339920 352667 357896 373912 403048 447370 467390 475888 503810 511280 534160 554191 594860 654346 705334 715792 747824 806096 894740 934780 1007620 1108382 1189720 1308692 1410668 1635865 1763335 1789480 1869560 2015240 2216764 2379440 2468669 2617384 2770955 2821336 3271730 3526670 3578960 3739120 3879337 4030480 4433528 4937338 5234768 5541910 5642672 6543460 7053340 7758674 8867056 9874676 11083820 12343345 13086920 14106680 15517348 19396685 19749352 22167640 24686690 26173840 27155359 28213360 31034696 38793370 39498704 44335280 49373380 54310718 62069392 77586740 98746760 108621436 135776795 155173480 197493520 217242872 271553590 310346960 434485744 543107180 1086214360 2172428720
• Sum of all divisors σ(n): 6497584128
• Sum of proper divisors (its aliquot sum) s(n): 4325155408
• 2172428720 is an abundant number, because the sum of its proper divisors (4325155408) is greater than itself. Its abundance is 2152726688

Bases of 2172428720

• Binary: 10000001011111001010000110110000₂
• Hexadecimal: 0x817CA1B0
• Base-36: ZXEOQ8

Squares and roots of 2172428720

• 2172428720 squared (2172428720²) is 4719446543480838400
• 2172428720 cubed (2172428720³) is 10252661213562502109838848000
• The square root of 2172428720 is 46609.3200980233
• The cube root of 2172428720 is 1295.1354131591

Scales and comparisons

• 2,172,428,720 seconds is equal to 69 years, 3 weeks, 6 days, 20 hours, 25 minutes, 20 seconds.
• To count from 1 to 2,172,428,720 would take you about one hundred thirty-eight 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 2172428720 cubic inches would be around 107.9 feet tall.

Recreational maths with 2172428720

• 2172428720 backwards is 0278242712
• 2172428720 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 2172428720's digits is 35
• More coming soon!