21490438342808402

Names of 21490438342808402

• Cardinal: 21490438342808402 can be written as Twenty-one quadrillion, four hundred ninety trillion, four hundred thirty-eight billion, three hundred forty-two million, eight hundred eight thousand, four hundred two.

Scientific notation

• Scientific notation: 2.1490438342808402 × 10¹⁶

Factors of 21490438342808402

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 10542

Divisors of 21490438342808402

• Number of divisors d(n): 162
• Complete list of divisors:
  1 2 11 17 22 34 53 106 121 187 242 289 374 578 583 901 1166 1802 2057 2809 3179 4114 5618 6358 6413 9911 10459 12826 15317 19822 20918 30634 30899 34969 47753 61798 69938 95506 109021 115049 168487 177803 218042 230098 336974 339889 355606 525283 554327 679778 811801 1050566 1108654 1265539 1623602 1853357 1955833 2531078 3022651 3706714 3911666 5778113 6045302 6097597 8929811 9423559 11556226 12195194 17859622 18847118 21514163 29379331 33249161 43028326 58758662 66498322 67073567 98227921 103659149 109390681 134147134 160200503 196455842 207318298 218781362 320401006 323172641 365740771 499448627 646345282 731481542 998897254 1140250639 1203297491 1762205533 1859641577 2280501278 2406594982 3524411066 3554899051 3719283154 5493934897 5797706093 7109798102 8490626659 10987869794 11595412186 13236272401 16981253318 19384260863 20456057347 26472544802 31613906809 38768521726 40912114694 60433283867 63227813618 63774767023 93396893249 98561003581 120866567734 127549534046 186793786498 197122007162 225016630817 307278422929 347752974899 450033261634 614556845858 695505949798 701522437253 1027365825739 1084171039391 1403044874506 1675537060877 2054731651478 2168342078782 3351074121754 3380062652219 3825282723889 5223733189793 6760125304438 7650565447778 10447466379586 11925881433301 18430907669647 23851762866602 36861815339294 37180689174409 57461065087723 74361378348818 88803464226481 114922130175446 177606928452962 202739984366117 405479968732234 632071715964953 976838106491291 1264143431929906 1953676212982582 10745219171404201 21490438342808402
• Sum of all divisors σ(n): 38366702160400719
• Sum of proper divisors (its aliquot sum) s(n): 16876263817592317
• 21490438342808402 is a deficient number, because the sum of its proper divisors (16876263817592317) is less than itself. Its deficiency is 4614174525216085

Bases of 21490438342808402

• Binary: 1001100010110010111000010010111011111011001001101010010₂
• Hexadecimal: 0x4C5970977D9352
• Base-36: 5VLQ32YMSEQ

Squares and roots of 21490438342808402

• 21490438342808402 squared (21490438342808402²) is 461838940166049535637752481793604
• 21490438342808402 cubed (21490438342808402³) is 9925121267946466310248966134151554713751481060808
• The square root of 21490438342808402 is 146596174.3798534533
• The cube root of 21490438342808402 is 278023.6611108887

Scales and comparisons

• 21,490,438,342,808,402 seconds is equal to 683,329,465 years, 3 days, 23 hours, 40 minutes, 2 seconds.
• To count from 1 to 21,490,438,342,808,402 would take you about two billion, forty-nine million, nine hundred eighty-eight thousand, three hundred ninety-five 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 21490438342808402 cubic inches would be around 23168.6 feet tall.

Recreational maths with 21490438342808402

• 21490438342808402 backwards is 20480824383409412
• The number of decimal digits it has is: 17
• The sum of 21490438342808402's digits is 62
• More coming soon!