28015994880

Names of 28015994880

• Cardinal: 28015994880 can be written as Twenty-eight billion, fifteen million, nine hundred ninety-four thousand, eight hundred eighty.

Scientific notation

• Scientific notation: 2.801599488 × 10¹⁰

Factors of 28015994880

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 22
• Sum of prime factors: 149

Divisors of 28015994880

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 45 48 54 60 64 72 80 81 90 96 108 120 128 135 139 144 160 162 180 192 216 240 243 256 270 278 288 320 324 360 384 405 417 432 480 486 512 540 556 576 640 648 695 720 729 768 810 834 864 960 972 1024 1080 1112 1152 1215 1251 1280 1296 1390 1440 1458 1536 1620 1668 1728 1920 1944 2048 2085 2160 2187 2224 2304 2430 2502 2560 2592 2780 2880 2916 3072 3240 3336 3456 3645 3753 3840 3888 4170 4320 4374 4448 4608 4860 5004 5120 5184 5560 5760 5832 6144 6255 6480 6561 6672 6912 7290 7506 7680 7776 8340 8640 8748 8896 9216 9720 10008 10240 10368 10935 11120 11259 11520 11664 12510 12960 13122 13344 13824 14580 15012 15360 15552 16680 17280 17496 17792 18432 18765 19440 19683 20016 20736 21870 22240 22518 23040 23328 25020 25920 26244 26688 27648 29160 30024 30720 31104 32805 33360 33777 34560 34992 35584 37530 38880 39366 40032 41472 43740 44480 45036 46080 46656 50040 51840 52488 53376 55296 56295 58320 60048 62208 65610 66720 67554 69120 69984 71168 75060 77760 78732 80064 82944 87480 88960 90072 92160 93312 98415 100080 101331 103680 104976 106752 112590 116640 120096 124416 131220 133440 135108 138240 139968 142336 150120 155520 157464 160128 165888 168885 174960 177920 180144 186624 196830 200160 202662 207360 209952 213504 225180 233280 240192 248832 262440 266880 270216 276480 279936 284672 300240 303993 311040 314928 320256 337770 349920 355840 360288 373248 393660 400320 405324 414720 419904 427008 450360 466560 480384 497664 506655 524880 533760 540432 559872 600480 607986 622080 629856 640512 675540 699840 711680 720576 746496 787320 800640 810648 829440 839808 854016 900720 911979 933120 960768 1013310 1049760 1067520 1080864 1119744 1200960 1215972 1244160 1259712 1281024 1351080 1399680 1423360 1441152 1492992 1519965 1574640 1601280 1621296 1679616 1801440 1823958 1866240 1921536 2026620 2099520 2135040 2161728 2239488 2401920 2431944 2488320 2519424 2562048 2702160 2735937 2799360 2882304 3039930 3149280 3202560 3242592 3359232 3602880 3647916 3732480 3843072 4053240 4199040 4270080 4323456 4478976 4559895 4803840 4863888 5038848 5404320 5471874 5598720 5764608 6079860 6298560 6405120 6485184 6718464 7205760 7295832 7464960 7686144 8106480 8398080 8646912 9119790 9607680 9727776 10077696 10808640 10943748 11197440 11529216 12159720 12597120 12810240 12970368 13436928 13679685 14411520 14591664 16212960 16796160 17293824 18239580 19215360 19455552 20155392 21617280 21887496 22394880 23058432 24319440 25194240 25940736 27359370 28823040 29183328 32425920 33592320 34587648 36479160 38430720 38911104 40310784 43234560 43774992 48638880 50388480 51881472 54718740 57646080 58366656 64851840 67184640 69175296 72958320 77822208 86469120 87549984 97277760 100776960 103762944 109437480 115292160 116733312 129703680 145916640 155644416 172938240 175099968 194555520 201553920 207525888 218874960 233466624 259407360 291833280 311288832 345876480 350199936 389111040 437749920 466933248 518814720 583666560 622577664 700399872 778222080 875499840 933866496 1037629440 1167333120 1400799744 1556444160 1750999680 1867732992 2334666240 2801599488 3112888320 3501999360 4669332480 5603198976 7003998720 9338664960 14007997440 28015994880
• Sum of all divisors σ(n): 101556655200
• Sum of proper divisors (its aliquot sum) s(n): 73540660320
• 28015994880 is an abundant number, because the sum of its proper divisors (73540660320) is greater than itself. Its abundance is 45524665440

Bases of 28015994880

• Binary: 11010000101111000100010100000000000₂
• Hexadecimal: 0x685E22800
• Base-36: CVC0000

Squares and roots of 28015994880

• 28015994880 squared (28015994880²) is 784895969116186214400
• 28015994880 cubed (28015994880³) is 21989641452091711107756982272000
• The square root of 28015994880 is 167379.7923287037
• The cube root of 28015994880 is 3037.1670746221

Scales and comparisons

• 28,015,994,880 seconds is equal to 890 years, 42 weeks, 5 days, 4 hours, 48 minutes.
• To count from 1 to 28,015,994,880 would take you about one thousand, seven hundred eighty-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 28015994880 cubic inches would be around 253.1 feet tall.

Recreational maths with 28015994880

• 28015994880 backwards is 08849951082
• 28015994880 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 28015994880's digits is 54
• More coming soon!