161649319845661242672

Names of 161649319845661242672

• Cardinal: 161649319845661242672 can be written as One hundred sixty-one quintillion, six hundred forty-nine quadrillion, three hundred nineteen trillion, eight hundred forty-five billion, six hundred sixty-one million, two hundred forty-two thousand, six hundred seventy-two.

Scientific notation

• Scientific notation: 1.61649319845661242672 × 10²⁰

Factors of 161649319845661242672

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 23832852

Divisors of 161649319845661242672

• Number of divisors d(n): 270
• Complete list of divisors:
  1 2 3 4 6 7 8 11 12 14 16 21 22 24 28 33 42 44 48 49 56 66 77 84 88 98 112 121 132 147 154 168 176 196 231 242 264 294 308 336 363 392 462 484 528 539 588 616 726 784 847 924 968 1078 1176 1232 1452 1617 1694 1848 1936 2156 2352 2541 2904 3234 3388 3696 4312 5082 5808 5929 6468 6776 8624 10164 11858 12936 13552 17787 20328 23716 25872 35574 40656 47432 71148 94864 142296 284592 23832829 47665658 71498487 95331316 142996974 166829803 190662632 262161119 285993948 333659606 381325264 500489409 524322238 571987896 667319212 786483357 1000978818 1048644476 1143975792 1167808621 1334638424 1572966714 1835127833 2001957636 2097288952 2335617242 2669276848 2883772309 3145933428 3503425863 3670255666 4003915272 4194577904 4671234484 5505383499 5767544618 6291866856 7006851726 7340511332 8007830544 8651316927 9342468968 11010766998 11535089236 12583733712 12845894831 14013703452 14681022664 17302633854 18684937936 20186406163 22021533996 23070178472 25691789662 28027406904 29362045328 34605267708 38537684493 40372812326 44043067992 46140356944 51383579324 56054813808 60559218489 69210535416 77075368986 80745624652 88086135984 102767158648 121118436978 138421070832 141304843141 154150737972 161491249304 205534317296 242236873956 282609686282 308301475944 322982498608 423914529423 484473747912 565219372564 616602951888 847829058846 968947495824 1130438745128 1695658117692 2260877490256 3391316235384 6782632470768 568003738143241 1136007476286482 1704011214429723 2272014952572964 3408022428859446 3976026167002687 4544029905145928 6248041119575651 6816044857718892 7952052334005374 9088059810291856 11928078501008061 12496082239151302 13632089715437784 15904104668010748 18744123358726953 23856157002016122 24992164478302604 27264179430875568 27832183169018809 31808209336021496 37488246717453906 43736287837029557 47712314004032244 49984328956605208 55664366338037618 63616418672042992 68728452315332161 74976493434907812 83496549507056427 87472575674059114 95424628008064488 99968657913210416 111328732676075236 131208863511088671 137456904630664322 149952986869815624 166993099014112854 174945151348118228 190849256016128976 206185356945996483 222657465352150472 262417727022177342 274913809261328644 299905973739631248 306154014859206899 333986198028225708 349890302696236456 412370713891992966 445314930704300944 481099166207325127 524835454044354684 549827618522657288 612308029718413798 667972396056451416 699780605392472912 824741427783985932 918462044577620697 962198332414650254 1049670908088709368 1099655237045314576 1224616059436827596 1335944792112902832 1443297498621975381 1649482855567971864 1836924089155241394 1924396664829300508 2099341816177418736 2449232118873655192 2886594997243950762 3298965711135943728 3367694163451275889 3673848178310482788 3848793329658601016 4898464237747310384 5773189994487901524 6735388326902551778 7347696356620965576 7697586659317202032 10103082490353827667 11546379988975803048 13470776653805103556 14695392713241931152 20206164980707655334 23092759977951606096 26941553307610207112 40412329961415310668 53883106615220414224 80824659922830621336 161649319845661242672
• Sum of all divisors σ(n): 533948528423033687124
• Sum of proper divisors (its aliquot sum) s(n): 372299208577372444452
• 161649319845661242672 is an abundant number, because the sum of its proper divisors (372299208577372444452) is greater than itself. Its abundance is 210649888731711201780

Bases of 161649319845661242672

• Binary: 10001100001101010101101111111111000111100000001000111111010100110000₂
• Hexadecimal: 0x8C355BFF1E023F530
• Base-36: Y44VXICR2LA9C

Squares and roots of 161649319845661242672

• 161649319845661242672 squared (161649319845661242672²) is 26130502606564889680388018093551273699584
• 161649319845661242672 cubed (161649319845661242672³) is 4223977973576492652056450492903761973252154649634596249448448
• The square root of 161649319845661242672 is 12714138580.5590951437
• The cube root of 161649319845661242672 is 5447425.4298257407

Scales and comparisons

• 161,649,319,845,661,242,672 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 161,649,319,845,661,242,672 would take you about two hundred ninety-three billion, two hundred seventy-four million, seven hundred one thousand and 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 161649319845661242672 cubic inches would be around 453952.1 feet tall.

Recreational maths with 161649319845661242672

• 161649319845661242672 backwards is 276242166548913946161
• The number of decimal digits it has is: 21
• The sum of 161649319845661242672's digits is 93
• More coming soon!