21157408420128

Names of 21157408420128

• Cardinal: 21157408420128 can be written as Twenty-one trillion, one hundred fifty-seven billion, four hundred eight million, four hundred twenty thousand, one hundred twenty-eight.

Scientific notation

• Scientific notation: 2.1157408420128 × 10¹³

Factors of 21157408420128

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 713

Divisors of 21157408420128

• Number of divisors d(n): 270
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 72 81 96 108 144 162 167 216 288 324 334 432 501 541 648 668 864 1002 1082 1296 1336 1503 1623 2004 2164 2592 2672 3006 3246 4008 4328 4509 4869 5344 6012 6492 8016 8656 9018 9738 12024 12984 13527 14607 16032 17312 18036 19476 24048 25968 27054 27889 29214 36072 38952 43821 48096 51936 54108 55778 58428 72144 77904 83667 87642 90347 108216 111556 116856 144288 155808 167334 175284 180694 216432 223112 233712 251001 271041 292681 334668 350568 361388 432864 446224 467424 502002 542082 585362 669336 701136 722776 753003 813123 878043 892448 1004004 1084164 1170724 1338672 1402272 1445552 1506006 1626246 1756086 2008008 2168328 2259009 2341448 2439369 2634129 2677344 2891104 3012012 3252492 3512172 4016016 4336656 4518018 4682896 4878738 5268258 6024024 6504984 7024344 7318107 7902387 8032032 8673312 9036036 9365792 9757476 10536516 12048048 13009968 14048688 14636214 15087949 15804774 18072072 19514952 21073032 23707161 24096096 26019936 28097376 29272428 30175898 31609548 36144144 39029904 42146064 45263847 47414322 48877727 58544856 60351796 63219096 72288288 78059808 84292128 90527694 94828644 97755454 117089712 120703592 126438192 135791541 146633181 181055388 189657288 195510908 234179424 241407184 252876384 271583082 293266362 362110776 379314576 391021816 407374623 439899543 482814368 543166164 586532724 724221552 758629152 782043632 814749246 879799086 1086332328 1173065448 1222123869 1319698629 1448443104 1564087264 1629498492 1759598172 2172664656 2346130896 2444247738 2639397258 3258996984 3519196344 3959095887 4345329312 4692261792 4888495476 5278794516 6517993968 7038392688 7918191774 8162580409 9776990952 10557589032 13035987936 14076785376 15836383548 16325160818 19553981904 21115178064 24487741227 31672767096 32650321636 39107963808 42230356128 48975482454 63345534192 65300643272 73463223681 97950964908 126691068384 130601286544 146926447362 195901929816 220389671043 261202573088 293852894724 391803859632 440779342086 587705789448 661169013129 783607719264 881558684172 1175411578896 1322338026258 1763117368344 2350823157792 2644676052516 3526234736688 5289352105032 7052469473376 10578704210064 21157408420128
• Sum of all divisors σ(n): 62714098630953
• Sum of proper divisors (its aliquot sum) s(n): 41556690210825
• 21157408420128 is an abundant number, because the sum of its proper divisors (41556690210825) is greater than itself. Its abundance is 20399281790697

Bases of 21157408420128

• Binary: 100110011111000010111110100000011000100100000₂
• Hexadecimal: 0x133E17D03120
• Base-36: 7HZKUPE00

Squares and roots of 21157408420128

• 21157408420128 squared (21157408420128²) is 447635931056103192955536384
• 21157408420128 cubed (21157408420128³) is 9470816216878234586201531385156261937152
• The square root of 21157408420128 is 4599718.2979099927
• The cube root of 21157408420128 is 27658.0032445125

Scales and comparisons

• 21,157,408,420,128 seconds is equal to 672,740 years, 7 weeks, 3 days, 6 hours, 28 minutes, 48 seconds.
• To count from 1 to 21,157,408,420,128 would take you about one million, six hundred eighty-one thousand, eight hundred fifty 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 21157408420128 cubic inches would be around 2304.8 feet tall.

Recreational maths with 21157408420128

• 21157408420128 backwards is 82102480475112
• The number of decimal digits it has is: 14
• The sum of 21157408420128's digits is 45
• More coming soon!