28237986720

Names of 28237986720

• Cardinal: 28237986720 can be written as Twenty-eight billion, two hundred thirty-seven million, nine hundred eighty-six thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 2.823798672 × 10¹⁰

Factors of 28237986720

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 75172

Divisors of 28237986720

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 29 30 32 36 40 45 48 54 58 60 72 80 81 87 90 96 108 116 120 135 144 145 160 162 174 180 216 232 240 261 270 288 290 324 348 360 405 432 435 464 480 522 540 580 648 696 720 783 810 864 870 928 1044 1080 1160 1296 1305 1392 1440 1566 1620 1740 2088 2160 2320 2349 2592 2610 2784 3132 3240 3480 3915 4176 4320 4640 4698 5220 6264 6480 6960 7830 8352 9396 10440 11745 12528 12960 13920 15660 18792 20880 23490 25056 31320 37584 41760 46980 62640 75133 75168 93960 125280 150266 187920 225399 300532 375665 375840 450798 601064 676197 751330 901596 1126995 1202128 1352394 1502660 1803192 2028591 2178857 2253990 2404256 2704788 3005320 3380985 3606384 4057182 4357714 4507980 5409576 6010640 6085773 6536571 6761970 7212768 8114364 8715428 9015960 10142955 10819152 10894285 12021280 12171546 13073142 13523940 16228728 17430856 18031920 19609713 20285910 21638304 21788570 24343092 26146284 27047880 30428865 32457456 32682855 34861712 36063840 39219426 40571820 43577140 48686184 52292568 54095760 58829139 60857730 64914912 65365710 69723424 78438852 81143640 87154280 97372368 98048565 104585136 108191520 117658278 121715460 130731420 156877704 162287280 174308560 176487417 194744736 196097130 209170272 235316556 243430920 261462840 294145695 313755408 324574560 348617120 352974834 392194260 470633112 486861840 522925680 588291390 627510816 705949668 784388520 882437085 941266224 973723680 1045851360 1176582780 1411899336 1568777040 1764874170 1882532448 2353165560 2823798672 3137554080 3529748340 4706331120 5647597344 7059496680 9412662240 14118993360 28237986720
• Sum of all divisors σ(n): 103094366760
• Sum of proper divisors (its aliquot sum) s(n): 74856380040
• 28237986720 is an abundant number, because the sum of its proper divisors (74856380040) is greater than itself. Its abundance is 46618393320

Bases of 28237986720

• Binary: 11010010011000111010111101110100000₂
• Hexadecimal: 0x6931D7BA0
• Base-36: CZ06200

Squares and roots of 28237986720

• 28237986720 squared (28237986720²) is 797383893998896358400
• 28237986720 cubed (28237986720³) is 22516515809482723063155560448000
• The square root of 28237986720 is 168041.6219869353
• The cube root of 28237986720 is 3045.1679006643

Scales and comparisons

• 28,237,986,720 seconds is equal to 897 years, 45 weeks, 5 days, 13 hours, 12 minutes.
• To count from 1 to 28,237,986,720 would take you about one thousand, seven hundred ninety-five 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 28237986720 cubic inches would be around 253.8 feet tall.

Recreational maths with 28237986720

• 28237986720 backwards is 02768973282
• 28237986720 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 28237986720's digits is 54
• More coming soon!