18973393920

Names of 18973393920

• Cardinal: 18973393920 can be written as Eighteen billion, nine hundred seventy-three million, three hundred ninety-three thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.897339392 × 10¹⁰

Factors of 18973393920

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 1709

Divisors of 18973393920

• Number of divisors d(n): 528
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 13 15 16 18 19 20 24 26 30 32 36 38 39 40 45 48 52 57 60 64 65 72 76 78 80 90 95 96 104 114 117 120 128 130 144 152 156 160 171 180 190 192 195 208 228 234 240 247 256 260 285 288 304 312 320 342 360 380 384 390 416 456 468 480 494 512 520 570 576 585 608 624 640 684 720 741 760 768 780 832 855 912 936 960 988 1024 1040 1140 1152 1170 1216 1235 1248 1280 1368 1440 1482 1520 1536 1560 1664 1667 1710 1824 1872 1920 1976 2080 2223 2280 2304 2340 2432 2470 2496 2560 2736 2880 2964 3040 3072 3120 3328 3334 3420 3648 3705 3744 3840 3952 4160 4446 4560 4608 4680 4864 4940 4992 5001 5120 5472 5760 5928 6080 6240 6656 6668 6840 7296 7410 7488 7680 7904 8320 8335 8892 9120 9216 9360 9728 9880 9984 10002 10944 11115 11520 11856 12160 12480 13312 13336 13680 14592 14820 14976 15003 15360 15808 16640 16670 17784 18240 18720 19456 19760 19968 20004 21671 21888 22230 23040 23712 24320 24960 25005 26672 27360 29184 29640 29952 30006 31616 31673 33280 33340 35568 36480 37440 39520 39936 40008 43342 43776 44460 46080 47424 48640 49920 50010 53344 54720 58368 59280 59904 60012 63232 63346 65013 66560 66680 71136 72960 74880 75015 79040 80016 86684 87552 88920 94848 95019 97280 99840 100020 106688 108355 109440 118560 119808 120024 126464 126692 130026 133360 142272 145920 149760 150030 158080 158365 160032 173368 175104 177840 189696 190038 195039 199680 200040 213376 216710 218880 237120 240048 252928 253384 260052 266720 284544 285057 291840 299520 300060 316160 316730 320064 325065 346736 355680 379392 380076 390078 400080 411749 426752 433420 437760 474240 475095 480096 506768 520104 533440 569088 570114 599040 600120 632320 633460 640128 650130 693472 711360 758784 760152 780156 800160 823498 853504 866840 875520 948480 950190 960192 975195 1013536 1040208 1066880 1138176 1140228 1200240 1235247 1264640 1266920 1280256 1300260 1386944 1422720 1425285 1520304 1560312 1600320 1646996 1707008 1733680 1896960 1900380 1920384 1950390 2027072 2058745 2080416 2133760 2276352 2280456 2400480 2470494 2533840 2560512 2600520 2773888 2845440 2850570 3040608 3120624 3200640 3293992 3467360 3705741 3793920 3800760 3840768 3900780 4054144 4117490 4160832 4267520 4560912 4800960 4940988 5067680 5121024 5201040 5547776 5690880 5701140 6081216 6176235 6241248 6401280 6587984 6934720 7411482 7601520 7681536 7801560 8108288 8234980 8321664 8535040 9121824 9601920 9881976 10135360 10402080 11095552 11381760 11402280 12162432 12352470 12482496 12802560 13175968 13869440 14822964 15203040 15363072 15603120 16216576 16469960 16643328 18243648 18528705 19203840 19763952 20270720 20804160 22191104 22804560 24324864 24704940 24964992 25605120 26351936 27738880 29645928 30406080 31206240 32433152 32939920 33286656 36487296 37057410 38407680 39527904 40541440 41608320 45609120 48649728 49409880 49929984 52703872 55477760 59291856 60812160 62412480 65879840 66573312 72974592 74114820 76815360 79055808 81082880 83216640 91218240 97299456 98819760 99859968 105407744 110955520 118583712 121624320 124824960 131759680 145949184 148229640 158111616 162165760 166433280 182436480 197639520 199719936 210815488 237167424 243248640 249649920 263519360 291898368 296459280 316223232 332866560 364872960 395279040 421630976 474334848 486497280 499299840 527038720 592918560 632446464 729745920 790558080 948669696 998599680 1054077440 1185837120 1264892928 1459491840 1581116160 1897339392 2108154880 2371674240 3162232320 3794678784 4743348480 6324464640 9486696960 18973393920
• Sum of all divisors σ(n): 74570408640
• Sum of proper divisors (its aliquot sum) s(n): 55597014720
• 18973393920 is an abundant number, because the sum of its proper divisors (55597014720) is greater than itself. Its abundance is 36623620800

Bases of 18973393920

• Binary: 10001101010111001110000010000000000₂
• Hexadecimal: 0x46AE70400
• Base-36: 8PS9OG0

Squares and roots of 18973393920

• 18973393920 squared (18973393920²) is 359989676843492966400
• 18973393920 cubed (18973393920³) is 6830225945885094240256524288000
• The square root of 18973393920 is 137743.9433151237
• The cube root of 18973393920 is 2667.1555281527

Scales and comparisons

• 18,973,393,920 seconds is equal to 603 years, 15 weeks, 2 days, 11 hours, 12 minutes.
• To count from 1 to 18,973,393,920 would take you about one thousand, two hundred six 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 18973393920 cubic inches would be around 222.3 feet tall.

Recreational maths with 18973393920

• 18973393920 backwards is 02939337981
• The number of decimal digits it has is: 11
• The sum of 18973393920's digits is 54
• More coming soon!