20015286720

Names of 20015286720

• Cardinal: 20015286720 can be written as Twenty billion, fifteen million, two hundred eighty-six thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 2.001528672 × 10¹⁰

Factors of 20015286720

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 145833

Divisors of 20015286720

• Number of divisors d(n): 224
• Complete list of divisors:
  1 2 3 4 5 6 8 10 11 12 13 15 16 20 22 24 26 30 32 33 39 40 44 48 52 55 60 64 65 66 78 80 88 96 104 110 120 130 132 143 156 160 165 176 192 195 208 220 240 260 264 286 312 320 330 352 390 416 429 440 480 520 528 572 624 660 704 715 780 832 858 880 960 1040 1056 1144 1248 1320 1430 1560 1716 1760 2080 2112 2145 2288 2496 2640 2860 3120 3432 3520 4160 4290 4576 5280 5720 6240 6864 8580 9152 10560 11440 12480 13728 17160 22880 27456 34320 45760 68640 137280 145799 291598 437397 583196 728995 874794 1166392 1457990 1603789 1749588 1895387 2186985 2332784 2915980 3207578 3499176 3790774 4373970 4665568 4811367 5686161 5831960 6415156 6998352 7581548 8018945 8747940 9331136 9476935 9622734 11372322 11663920 12830312 13996704 15163096 16037890 17495880 18953870 19245468 20849257 22744644 23327840 24056835 25660624 27993408 28430805 30326192 32075780 34991760 37907740 38490936 41698514 45489288 46655680 48113670 51321248 56861610 60652384 62547771 64151560 69983520 75815480 76981872 83397028 90978576 96227340 102642496 104246285 113723220 121304768 125095542 128303120 139967040 151630960 153963744 166794056 181957152 192454680 208492570 227446440 250191084 256606240 303261920 307927488 312738855 333588112 363914304 384909360 416985140 454892880 500382168 513212480 606523840 625477710 667176224 769818720 833970280 909785760 1000764336 1250955420 1334352448 1539637440 1667940560 1819571520 2001528672 2501910840 3335881120 4003057344 5003821680 6671762240 10007643360 20015286720
• Sum of all divisors σ(n): 74658931200
• Sum of proper divisors (its aliquot sum) s(n): 54643644480
• 20015286720 is an abundant number, because the sum of its proper divisors (54643644480) is greater than itself. Its abundance is 34628357760

Bases of 20015286720

• Binary: 10010101001000000010000100111000000₂
• Hexadecimal: 0x4A90109C0
• Base-36: 970L22O

Squares and roots of 20015286720

• 20015286720 squared (20015286720²) is 400611702483808358400
• 20015286720 cubed (20015286720³) is 8018358088600760450908520448000
• The square root of 20015286720 is 141475.3926306621
• The cube root of 20015286720 is 2715.1090161721

Scales and comparisons

• 20,015,286,720 seconds is equal to 636 years, 22 weeks, 9 hours, 52 minutes.
• To count from 1 to 20,015,286,720 would take you about one thousand, two hundred seventy-two 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 20015286720 cubic inches would be around 226.3 feet tall.

Recreational maths with 20015286720

• 20015286720 backwards is 02768251002
• 20015286720 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 20015286720's digits is 33
• More coming soon!