18128006400

Names of 18128006400

• Cardinal: 18128006400 can be written as Eighteen billion, one hundred twenty-eight million, six thousand, four hundred.

Scientific notation

• Scientific notation: 1.81280064 × 10¹⁰

Factors of 18128006400

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 296

Divisors of 18128006400

• Number of divisors d(n): 864
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 14 15 16 19 20 21 24 25 28 30 31 32 35 38 40 42 48 50 56 57 60 62 64 70 75 76 80 84 93 95 96 100 105 112 114 120 124 128 133 140 150 152 155 160 168 175 186 190 192 200 210 217 224 228 229 240 248 256 266 280 285 300 304 310 320 336 350 372 380 384 399 400 420 434 448 456 458 465 475 480 496 525 532 560 570 589 600 608 620 640 651 665 672 687 700 744 760 768 775 798 800 840 868 896 912 916 930 950 960 992 1050 1064 1085 1120 1140 1145 1178 1200 1216 1240 1280 1302 1330 1344 1374 1400 1425 1488 1520 1550 1596 1600 1603 1680 1736 1767 1792 1824 1832 1860 1900 1920 1984 1995 2100 2128 2170 2240 2280 2290 2325 2356 2400 2432 2480 2604 2660 2688 2748 2800 2850 2945 2976 3040 3100 3192 3200 3206 3255 3325 3360 3435 3472 3534 3648 3664 3720 3800 3840 3968 3990 4123 4200 4256 4340 4351 4480 4560 4580 4650 4712 4800 4809 4864 4960 5208 5320 5376 5425 5496 5600 5700 5725 5890 5952 6080 6200 6384 6400 6412 6510 6650 6720 6870 6944 7068 7099 7296 7328 7440 7600 7936 7980 8015 8246 8400 8512 8680 8702 8835 8960 9120 9160 9300 9424 9600 9618 9920 9975 10416 10640 10850 10992 11200 11400 11450 11780 11904 12160 12369 12400 12768 12824 13020 13053 13300 13440 13740 13888 14136 14198 14592 14656 14725 14880 15200 15960 16030 16275 16492 16800 17024 17175 17360 17404 17670 18240 18320 18600 18848 19200 19236 19840 19950 20615 20832 21280 21297 21700 21755 21984 22400 22800 22900 23560 23808 24045 24320 24738 24800 25536 25648 26040 26106 26600 26880 27480 27776 28272 28396 29312 29450 29760 30400 30457 31920 32060 32550 32984 33600 34048 34350 34720 34808 35340 35495 36480 36640 37200 37696 38472 39680 39900 40075 41230 41664 42560 42594 43400 43510 43968 44175 44800 45600 45800 47120 48090 49476 49600 49693 51072 51296 52080 52212 53200 54960 55552 56544 56792 58624 58900 59520 60800 60914 61845 63840 64120 65100 65265 65968 67200 68700 69440 69616 70680 70990 72960 73280 74400 75392 76944 79800 80150 82460 83328 85120 85188 86800 87020 87936 88350 91200 91371 91600 94240 96180 98952 99200 99386 102144 102592 103075 104160 104424 106400 106485 108775 109920 113088 113584 117800 119040 120225 121600 121828 123690 127680 128240 130200 130530 131936 134400 134881 137400 138880 139232 141360 141980 146560 148800 149079 150784 152285 153888 159600 160300 164920 166656 170240 170376 173600 174040 175872 176700 177475 182400 182742 183200 188480 192360 197904 198400 198772 205184 206150 208320 208848 212800 212970 217550 219840 226176 227168 235600 240450 243656 247380 248465 255360 256480 260400 261060 263872 269762 274800 277760 278464 282720 283960 293120 297600 298158 304570 307776 309225 319200 320600 326325 329840 340752 347200 348080 353400 354950 364800 365484 366400 376960 384720 395808 397544 404643 410368 412300 416640 417696 425600 425940 435100 439680 452352 454336 456855 471200 480900 487312 494760 496930 510720 512960 520800 522120 527744 532425 539524 549600 556928 565440 567920 595200 596316 609140 615552 618450 638400 641200 652650 659680 674405 681504 694400 696160 706800 709900 730968 732800 745395 753920 761425 769440 791616 795088 809286 824600 833280 835392 851200 851880 870200 879360 908672 913710 942400 944167 961800 974624 989520 993860 1025920 1041600 1044240 1055488 1064850 1079048 1099200 1113856 1130880 1135840 1192632 1218280 1231104 1236900 1242325 1276800 1282400 1305300 1319360 1348810 1363008 1388800 1392320 1413600 1419800 1461936 1465600 1490790 1522850 1538880 1583232 1590176 1618572 1649200 1670784 1703760 1740400 1817344 1827420 1884800 1888334 1923600 1949248 1979040 1987720 2023215 2051840 2083200 2088480 2129700 2158096 2198400 2261760 2271680 2284275 2385264 2436560 2473800 2484650 2553600 2564800 2610600 2638720 2697620 2726016 2784640 2827200 2832501 2839600 2923872 2981580 3045700 3077760 3166464 3180352 3237144 3298400 3341568 3372025 3407520 3480800 3654840 3726975 3769600 3776668 3847200 3898496 3958080 3975440 4046430 4166400 4176960 4259400 4316192 4396800 4543360 4568550 4720835 4770528 4873120 4947600 4969300 5129600 5221200 5277440 5395240 5452032 5569280 5654400 5665002 5679200 5847744 5963160 6091400 6155520 6360704 6474288 6596800 6744050 6815040 6961600 7309680 7453950 7553336 7694400 7796992 7916160 7950880 8092860 8353920 8518800 8632384 9086720 9137100 9441670 9541056 9746240 9895200 9938600 10116075 10259200 10442400 10790480 11308800 11330004 11358400 11695488 11926320 12182800 12721408 12948576 13193600 13488100 13630080 13923200 14162505 14619360 14907900 15106672 15388800 15832320 15901760 16185720 16707840 17037600 17264768 18274200 18883340 19082112 19492480 19790400 19877200 20232150 20884800 21580960 22660008 22716800 23390976 23604175 23852640 24365600 25897152 26387200 26976200 27260160 27846400 28325010 29238720 29815800 30213344 30777600 31803520 32371440 34075200 34529536 36548400 37766680 38164224 38984960 39580800 39754400 40464300 41769600 43161920 45320016 45433600 47208350 47705280 48731200 51794304 53952400 56650020 58477440 59631600 60426688 63607040 64742880 68150400 70812525 73096800 75533360 79161600 79508800 80928600 83539200 86323840 90640032 94416700 95410560 97462400 103588608 107904800 113300040 116954880 119263200 120853376 129485760 136300800 141625050 146193600 151066720 159017600 161857200 172647680 181280064 188833400 190821120 194924800 215809600 226600080 238526400 241706752 258971520 283250100 292387200 302133440 318035200 323714400 362560128 377666800 431619200 453200160 477052800 517943040 566500200 584774400 604266880 647428800 725120256 755333600 863238400 906400320 954105600 1133000400 1208533760 1294857600 1510667200 1812800640 2266000800 2589715200 3021334400 3625601280 4532001600 6042668800 9064003200 18128006400
• Sum of all divisors σ(n): 74617446400
• Sum of proper divisors (its aliquot sum) s(n): 56489440000
• 18128006400 is an abundant number, because the sum of its proper divisors (56489440000) is greater than itself. Its abundance is 38361433600

Bases of 18128006400

• Binary: 10000111000100000110110110100000000₂
• Hexadecimal: 0x438836D00
• Base-36: 8BSY39C

Squares and roots of 18128006400

• 18128006400 squared (18128006400²) is 328624616038440960000
• 18128006400 cubed (18128006400³) is 5957309142742400368902144000000
• The square root of 18128006400 is 134640.2852046891
• The cube root of 18128006400 is 2626.9391639557

Scales and comparisons

• 18,128,006,400 seconds is equal to 576 years, 21 weeks, 3 days, 21 hours, 20 minutes.
• To count from 1 to 18,128,006,400 would take you about one thousand, one hundred fifty-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 18128006400 cubic inches would be around 218.9 feet tall.

Recreational maths with 18128006400

• 18128006400 backwards is 00460082181
• 18128006400 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18128006400's digits is 30
• More coming soon!