16561983438

Names of 16561983438

• Cardinal: 16561983438 can be written as Sixteen billion, five hundred sixty-one million, nine hundred eighty-three thousand, four hundred thirty-eight.

Scientific notation

• Scientific notation: 1.6561983438 × 10¹⁰

Factors of 16561983438

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 73

Divisors of 16561983438

• Number of divisors d(n): 512
• Complete list of divisors:
  1 2 3 6 7 9 11 13 14 18 21 22 26 27 33 37 39 42 49 54 63 66 74 77 78 91 98 99 111 117 126 143 147 154 169 182 189 198 222 231 234 259 273 286 294 297 333 338 343 351 378 407 429 441 462 481 507 518 539 546 594 637 666 686 693 702 777 814 819 858 882 962 999 1001 1014 1029 1078 1183 1221 1274 1287 1323 1386 1443 1521 1554 1617 1638 1813 1859 1911 1998 2002 2058 2079 2197 2331 2366 2442 2457 2574 2646 2849 2886 3003 3042 3087 3234 3367 3549 3626 3663 3718 3773 3822 3861 4158 4329 4394 4459 4563 4662 4851 4914 5291 5439 5577 5698 5733 6006 6174 6253 6591 6734 6993 7007 7098 7326 7546 7722 8281 8547 8658 8918 9009 9126 9261 9702 10101 10582 10647 10878 10989 11154 11319 11466 12506 12691 12987 13013 13182 13377 13986 14014 14553 15379 15873 16317 16562 16731 17094 17199 18018 18522 18759 19773 19943 20202 21021 21294 21978 22638 23569 24167 24843 25382 25641 25974 26026 26754 27027 29106 30303 30758 31746 31941 32634 33462 33957 34398 37037 37518 38073 39039 39546 39886 40131 42042 43771 46137 47138 47619 48334 48951 49049 49686 50193 51282 54054 56277 57967 59319 59829 60606 63063 63882 67914 68783 70707 72501 74074 74529 76146 76923 78078 80262 81289 87542 90909 91091 92274 95238 97902 98098 100386 101871 107653 111111 112554 114219 115934 117117 118638 119658 120393 126126 131313 137566 138411 139601 141414 142857 145002 147147 149058 153846 162578 164983 168831 169169 173901 179487 181818 182182 189189 203742 206349 212121 215306 217503 222222 223587 228438 234234 240786 243867 259259 262626 273273 276822 279202 285714 294294 306397 322959 329966 333333 337662 338338 342657 347802 351351 358974 378378 393939 412698 415233 418803 424242 435006 441441 447174 481481 487734 494949 507507 518518 521703 538461 546546 569023 612794 619047 636363 637637 645918 652509 666666 685314 702702 731601 753571 777777 787878 819819 830466 837606 882882 894179 919191 962962 968877 989898 999999 1015014 1043406 1076922 1138046 1181817 1184183 1238094 1256409 1272726 1275274 1305018 1324323 1444443 1463202 1484847 1507142 1522521 1555554 1565109 1639638 1707069 1788358 1814813 1838382 1857141 1912911 1937754 1999998 2144779 2194803 2260713 2333331 2363634 2368366 2459457 2512818 2648646 2682537 2757573 2888886 2906631 2969694 3045042 3130218 3370367 3414138 3552549 3629626 3714282 3769227 3825822 3983161 4289558 4333329 4389606 4454541 4521426 4567563 4666662 4918914 5121207 5365074 5444439 5515146 5738733 5813262 6259253 6434337 6740734 6782139 6999993 7105098 7538454 7966322 8047611 8272719 8289281 8666658 8909082 9135126 10111101 10242414 10657647 10888878 11477466 11949483 12518506 12868674 12999987 13564278 13999986 15363621 16095222 16333317 16545438 16578562 17216199 18777759 19303011 20222202 20346417 21315294 23592569 23898966 24142833 24867843 25999974 27882127 30333303 30727242 31972941 32666634 34432398 35848449 37555518 38606022 40692834 43814771 47185138 48285666 48999951 49735686 55764254 56333277 57909033 60666606 63945882 70777707 71696898 74603529 83646381 87629542 90999909 97999902 107545347 112666554 115818066 131444313 141555414 149207058 167292762 168999831 181999818 212333121 215090694 223810587 250939143 262888626 306703397 337999662 394332939 424666242 447621174 501878286 613406794 636999363 752817429 788665878 920110191 1182998817 1273998726 1505634858 1840220382 2365997634 2760330573 5520661146 8280991719 16561983438
• Sum of all divisors σ(n): 52093440000
• Sum of proper divisors (its aliquot sum) s(n): 35531456562
• 16561983438 is an abundant number, because the sum of its proper divisors (35531456562) is greater than itself. Its abundance is 18969473124

Bases of 16561983438

• Binary: 1111011011001010111100111111001110₂
• Hexadecimal: 0x3DB2BCFCE
• Base-36: 7LWKS7I

Squares and roots of 16561983438

• 16561983438 squared (16561983438²) is 274299295400586299844
• 16561983438 cubed (16561983438³) is 4542940387479579873506029983672
• The square root of 16561983438 is 128693.3698292185
• The cube root of 16561983438 is 2549.0055554913

Scales and comparisons

• 16,561,983,438 seconds is equal to 526 years, 32 weeks, 1 day, 14 hours, 57 minutes, 18 seconds.
• To count from 1 to 16,561,983,438 would take you about one thousand and fifty-three 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 16561983438 cubic inches would be around 212.4 feet tall.

Recreational maths with 16561983438

• 16561983438 backwards is 83438916561
• 16561983438 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 16561983438's digits is 54
• More coming soon!