18999457873920

Names of 18999457873920

• Cardinal: 18999457873920 can be written as Eighteen trillion, nine hundred ninety-nine billion, four hundred fifty-seven million, eight hundred seventy-three thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.899945787392 × 10¹³

Factors of 18999457873920

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 29
• Sum of prime factors: 1667

Divisors of 18999457873920

• Number of divisors d(n): 672
• 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 96 108 120 128 135 144 160 162 180 192 216 240 243 256 270 288 320 324 360 384 405 432 480 486 512 540 576 640 648 720 729 768 810 864 960 972 1024 1080 1152 1215 1280 1296 1440 1458 1536 1620 1657 1728 1920 1944 2048 2160 2187 2304 2430 2560 2592 2880 2916 3072 3240 3314 3456 3645 3840 3888 4096 4320 4374 4608 4860 4971 5120 5184 5760 5832 6144 6480 6628 6912 7290 7680 7776 8192 8285 8640 8748 9216 9720 9942 10240 10368 10935 11520 11664 12288 12960 13256 13824 14580 14913 15360 15552 16384 16570 17280 17496 18432 19440 19884 20480 20736 21870 23040 23328 24576 24855 25920 26512 27648 29160 29826 30720 31104 32768 33140 34560 34992 36864 38880 39768 40960 41472 43740 44739 46080 46656 49152 49710 51840 53024 55296 58320 59652 61440 62208 65536 66280 69120 69984 73728 74565 77760 79536 81920 82944 87480 89478 92160 93312 98304 99420 103680 106048 110592 116640 119304 122880 124416 131072 132560 134217 138240 139968 147456 149130 155520 159072 163840 165888 174960 178956 184320 186624 196608 198840 207360 212096 221184 223695 233280 238608 245760 248832 262144 265120 268434 276480 279936 294912 298260 311040 318144 327680 331776 349920 357912 368640 373248 393216 397680 402651 414720 424192 442368 447390 466560 477216 491520 497664 524288 530240 536868 552960 559872 589824 596520 622080 636288 655360 663552 671085 699840 715824 737280 746496 786432 795360 805302 829440 848384 884736 894780 933120 954432 983040 995328 1048576 1060480 1073736 1105920 1119744 1179648 1193040 1207953 1244160 1272576 1310720 1327104 1342170 1399680 1431648 1474560 1492992 1572864 1590720 1610604 1658880 1696768 1769472 1789560 1866240 1908864 1966080 1990656 2013255 2120960 2147472 2211840 2239488 2359296 2386080 2415906 2488320 2545152 2621440 2654208 2684340 2799360 2863296 2949120 2985984 3145728 3181440 3221208 3317760 3393536 3538944 3579120 3623859 3732480 3817728 3932160 3981312 4026510 4241920 4294944 4423680 4478976 4718592 4772160 4831812 4976640 5090304 5242880 5308416 5368680 5598720 5726592 5898240 5971968 6039765 6362880 6442416 6635520 6787072 7077888 7158240 7247718 7464960 7635456 7864320 7962624 8053020 8483840 8589888 8847360 8957952 9437184 9544320 9663624 9953280 10180608 10616832 10737360 11197440 11453184 11796480 11943936 12079530 12725760 12884832 13271040 13574144 14155776 14316480 14495436 14929920 15270912 15728640 15925248 16106040 16967680 17179776 17694720 17915904 18119295 19088640 19327248 19906560 20361216 21233664 21474720 22394880 22906368 23592960 23887872 24159060 25451520 25769664 26542080 27148288 28311552 28632960 28990872 29859840 30541824 31850496 32212080 33935360 34359552 35389440 35831808 36238590 38177280 38654496 39813120 40722432 42467328 42949440 44789760 45812736 47185920 47775744 48318120 50903040 51539328 53084160 54296576 57265920 57981744 59719680 61083648 63700992 64424160 67870720 68719104 70778880 71663616 72477180 76354560 77308992 79626240 81444864 84934656 85898880 89579520 91625472 95551488 96636240 101806080 103078656 106168320 108593152 114531840 115963488 119439360 122167296 127401984 128848320 135741440 137438208 141557760 143327232 144954360 152709120 154617984 159252480 162889728 171797760 179159040 183250944 191102976 193272480 203612160 206157312 212336640 217186304 229063680 231926976 238878720 244334592 254803968 257696640 271482880 274876416 286654464 289908720 305418240 309235968 318504960 325779456 343595520 358318080 366501888 382205952 386544960 407224320 412314624 424673280 434372608 458127360 463853952 477757440 488669184 515393280 542965760 549752832 573308928 579817440 610836480 618471936 637009920 651558912 687191040 716636160 733003776 764411904 773089920 814448640 824629248 868745216 916254720 927707904 955514880 977338368 1030786560 1085931520 1099505664 1146617856 1159634880 1221672960 1236943872 1274019840 1303117824 1374382080 1433272320 1466007552 1546179840 1628897280 1649258496 1737490432 1832509440 1855415808 1911029760 1954676736 2061573120 2171863040 2199011328 2293235712 2319269760 2443345920 2473887744 2606235648 2748764160 2866544640 2932015104 3092359680 3257794560 3298516992 3665018880 3710831616 3822059520 3909353472 4123146240 4343726080 4398022656 4638539520 4886691840 4947775488 5212471296 5497528320 5733089280 5864030208 6184719360 6515589120 6597033984 7330037760 7421663232 7818706944 8246292480 8687452160 8796045312 9277079040 9773383680 9895550976 10995056640 11466178560 11728060416 12369438720 13031178240 13194067968 14660075520 14843326464 15637413888 16492584960 17592090624 18554158080 19546767360 19791101952 21990113280 23456120832 24738877440 26062356480 26388135936 29320151040 29686652928 32985169920 35184181248 37108316160 39093534720 39582203904 43980226560 46912241664 49477754880 52776271872 58640302080 59373305856 65970339840 70368362496 74216632320 78187069440 79164407808 87960453120 98955509760 105552543744 117280604160 118746611712 131940679680 140736724992 148433264640 158328815616 175920906240 197911019520 211105087488 234561208320 237493223424 263881359360 296866529280 316657631232 351841812480 395822039040 422210174976 474986446848 527762718720 593733058560 633315262464 703683624960 791644078080 949972893696 1055525437440 1187466117120 1266630524928 1583288156160 1899945787392 2111050874880 2374932234240 3166576312320 3799891574784 4749864468480 6333152624640 9499728936960 18999457873920
• Sum of all divisors σ(n): 68428862725440
• Sum of proper divisors (its aliquot sum) s(n): 49429404851520
• 18999457873920 is an abundant number, because the sum of its proper divisors (49429404851520) is greater than itself. Its abundance is 30429946977600

Bases of 18999457873920

• Binary: 100010100011110100111111100000000000000000000₂
• Hexadecimal: 0x1147A7F00000
• Base-36: 6QG8AO000

Squares and roots of 18999457873920

• 18999457873920 squared (18999457873920²) is 360979399502860686616166400
• 18999457873920 cubed (18999457873920³) is 6858412894207539805894340269244940288000
• The square root of 18999457873920 is 4358836.7569708321
• The cube root of 18999457873920 is 26683.7626935555

Scales and comparisons

• 18,999,457,873,920 seconds is equal to 604,123 years, 51 weeks, 3 days, 19 hours, 12 minutes.
• To count from 1 to 18,999,457,873,920 would take you about one million, five hundred ten thousand, three hundred nine 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 18999457873920 cubic inches would be around 2223.6 feet tall.

Recreational maths with 18999457873920

• 18999457873920 backwards is 02937875499981
• 18999457873920 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 18999457873920's digits is 81
• More coming soon!