640624379031

Names of 640624379031

• Cardinal: 640624379031 can be written as Six hundred forty billion, six hundred twenty-four million, three hundred seventy-nine thousand and thirty-one.

Scientific notation

• Scientific notation: 6.40624379031 × 10¹¹

Factors of 640624379031

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 930

Divisors of 640624379031

• Number of divisors d(n): 216
• Complete list of divisors:
  1 3 7 9 13 21 27 39 49 63 81 91 117 147 169 189 243 273 351 441 507 567 637 729 819 907 1053 1183 1323 1521 1701 1911 2187 2197 2457 2721 3159 3549 3969 4563 5103 5733 6349 6561 6591 7371 8163 8281 9477 10647 11791 11907 13689 15309 15379 17199 19047 19773 22113 24489 24843 28431 31941 35373 35721 41067 44443 45927 46137 51597 57141 59319 66339 73467 74529 82537 85293 95823 106119 107163 107653 123201 133329 138411 153283 154791 171423 177957 199017 220401 223587 247611 287469 318357 321489 322959 369603 399987 415233 459849 464373 514269 533871 577759 597051 661203 670761 742833 862407 955071 968877 1072981 1108809 1199961 1245699 1379547 1393119 1542807 1601613 1733277 1983609 1992679 2012283 2228499 2587221 2865213 2906631 3218943 3599883 3737097 4138641 4179357 4628421 4804839 5199831 5950827 5978037 6036849 6685497 7510867 7761663 8595639 8719893 9656829 10799649 11211291 12415923 13885263 13948753 14414517 15599493 17934111 18110547 20056491 22532601 25786917 26159679 28970487 32398947 33633873 37247769 41655789 41846259 46798479 53802333 54331641 60169473 67597803 77360751 78479037 86911461 97196841 97641271 100901619 111743307 125538777 140395437 161406999 180508419 202793409 235437111 260734383 291590523 292923813 335229921 376616331 421186311 484220997 541525257 608380227 706311333 782203149 878771439 1005689763 1129848993 1263558933 1452662991 1825140681 2346609447 2636314317 3389546979 3790676799 4357988973 5475422043 7039828341 7908942951 10168640937 13073966919 16426266129 23726828853 30505922811 49278798387 71180486559 91517768433 213541459677 640624379031
• Sum of all divisors σ(n): 1212207294480
• Sum of proper divisors (its aliquot sum) s(n): 571582915449
• 640624379031 is a deficient number, because the sum of its proper divisors (571582915449) is less than itself. Its deficiency is 69041463582

Bases of 640624379031

• Binary: 1001010100101000001100000100010010010111₂
• Hexadecimal: 0x9528304497
• Base-36: 86AR7QFR

Squares and roots of 640624379031

• 640624379031 squared (640624379031²) is 410399595008854352498961
• 640624379031 cubed (640624379031³) is 262911985707121206516368473697686791
• The square root of 640624379031 is 800390.1417627531
• The cube root of 640624379031 is 8620.5403156083

Scales and comparisons

• 640,624,379,031 seconds is equal to 20,369 years, 45 weeks, 3 days, 23 minutes, 51 seconds.
• To count from 1 to 640,624,379,031 would take you about forty thousand, seven hundred thirty-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 640624379031 cubic inches would be around 718.4 feet tall.

Recreational maths with 640624379031

• 640624379031 backwards is 130973426046
• The number of decimal digits it has is: 12
• The sum of 640624379031's digits is 45
• More coming soon!