399397912729968321

Names of 399397912729968321

• Cardinal: 399397912729968321 can be written as Three hundred ninety-nine quadrillion, three hundred ninety-seven trillion, nine hundred twelve billion, seven hundred twenty-nine million, nine hundred sixty-eight thousand, three hundred twenty-one.

Scientific notation

• Scientific notation: 3.99397912729968321 × 10¹⁷

Factors of 399397912729968321

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 288

Divisors of 399397912729968321

• Number of divisors d(n): 315
• Complete list of divisors:
  1 3 9 13 27 31 39 81 93 117 169 241 243 279 351 403 507 723 729 837 961 1053 1209 1521 2169 2511 2883 3133 3159 3627 4563 5239 6507 7471 7533 8649 9399 9477 10881 12493 13689 15717 19521 22413 22599 25947 28197 32643 37479 40729 41067 47151 58081 58563 67239 77841 84591 97123 97929 112437 122187 123201 141453 162409 174243 175689 201717 231601 233523 253773 291369 293787 337311 366561 424359 487227 522729 605151 694803 700569 755053 761319 874107 1011933 1099683 1262599 1273077 1461681 1568187 1800511 1815453 2084409 2265159 2283957 2622321 3010813 3035799 3299049 3787797 3819231 4385043 4704561 5401533 5446359 6253227 6795477 7866963 9032439 9107397 9815689 9897147 11363391 13155129 13997521 14113683 16204599 18759681 20386431 23406643 23600889 27097317 29447067 29691441 34090173 39140569 39465387 41992563 42341049 48613797 55815841 56279043 61159293 70219929 70802667 81291951 88341201 102270519 117421707 118396161 125977689 145841391 167447523 168837129 181967773 183477879 210659787 243875853 265023603 304286359 306811557 352265121 377933067 433923151 437524173 502342569 545903319 550433637 631979361 725605933 731627559 795070809 912859077 920434671 1056795363 1133799201 1301769453 1312572519 1507027707 1637709957 1895938083 2176817799 2194882677 2365581049 2385212427 2738577231 3170386089 3373402561 3401397603 3905308359 4521083121 4913129871 5641000963 5687814249 6530453397 7096743147 7155637281 8215731693 9432877129 9511158267 10120207683 10204192809 11715925077 13451617681 13563249363 14739389613 16923002889 17063442747 19591360191 21290229441 24647195079 28298631387 28533474801 30360623049 35147775231 40354853043 40689748089 43854233293 44218168839 50769008667 58774080573 63870688323 73333012519 73941585237 84895894161 91081869147 104575479391 105443325693 121064559129 131562699879 132654506517 152307026001 174871029853 176322241719 191612064969 219999037557 221824755711 254687682483 273245607441 313726438173 316329977079 363193677387 394688099637 456921078003 524613089559 528966725157 570105032809 574836194907 659997112671 764063047449 819736822323 941179314519 1089581032161 1184064298911 1359481232083 1370763234009 1573839268677 1710315098427 1724508584721 1979991338013 2273323388089 2292189142347 2459210466969 2823537943557 3241839861121 3268743096483 3552192896733 4078443696249 4112289702027 4721517806031 5130945295281 5939974014039 6819970164267 6876567427041 8470613830671 9725519583363 9806229289449 10656578690199 12235331088747 14164553418093 15392835885843 17673256017079 17819922042117 20459910492801 25411841492013 29176558750089 31969736070597 36705993266241 42143918194573 42493660254279 46178507657529 53019768051237 53459766126351 61379731478403 76235524476039 87529676250267 110117979798723 126431754583719 127480980762837 138535522972587 159059304153711 184139194435209 262589028750801 330353939396169 379295263751157 415606568917761 477177912461133 547870936529449 552417583305627 787767086252403 991061818188507 1137885791253471 1431533737383399 1643612809588347 1657252749916881 2363301258757209 3413657373760413 4294601212150197 4930838428765041 10240972121281239 12883803636450591 14792515286295123 30722916363843717 44377545858885369 133132637576656107 399397912729968321
• Sum of all divisors σ(n): 672813150410727135
• Sum of proper divisors (its aliquot sum) s(n): 273415237680758814
• 399397912729968321 is a deficient number, because the sum of its proper divisors (273415237680758814) is less than itself. Its deficiency is 125982675049209507

Bases of 399397912729968321

• Binary: 10110001010111100100100100100011000010011010101111011000001₂
• Hexadecimal: 0x58AF249184D5EC1
• Base-36: 318MQS4IWN29

Squares and roots of 399397912729968321

• 399397912729968321 squared (399397912729968321²) is 159518692693055390999945253663559041
• 399397912729968321 cubed (399397912729968321³) is 63711432903019572338986338555764379372829684043140161
• 399397912729968321 is a perfect square number. Its square root is 631979361
• The cube root of 399397912729968321 is 736436.4293427925

Scales and comparisons

• 399,397,912,729,968,321 seconds is equal to 12,699,618,205 years, 49 weeks, 4 days, 5 hours, 25 minutes, 21 seconds.
• To count from 1 to 399,397,912,729,968,321 would take you about thirty-eight billion, ninety-eight million, eight hundred fifty-four thousand, six hundred seventeen 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 399397912729968321 cubic inches would be around 61369.7 feet tall.

Recreational maths with 399397912729968321

• 399397912729968321 backwards is 123869927219793993
• The number of decimal digits it has is: 18
• The sum of 399397912729968321's digits is 99
• More coming soon!