640829631897

Names of 640829631897

• Cardinal: 640829631897 can be written as Six hundred forty billion, eight hundred twenty-nine million, six hundred thirty-one thousand, eight hundred ninety-seven.

Scientific notation

• Scientific notation: 6.40829631897 × 10¹¹

Factors of 640829631897

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 230

Divisors of 640829631897

• Number of divisors d(n): 504
• Complete list of divisors:
  1 3 7 9 13 19 21 27 37 39 49 57 63 81 91 111 117 133 147 151 169 171 189 243 247 259 273 333 351 399 441 453 481 507 513 567 637 703 729 741 777 819 931 999 1053 1057 1183 1197 1323 1359 1443 1521 1539 1701 1729 1813 1911 1963 2109 2223 2331 2457 2793 2869 2997 3159 3171 3211 3367 3549 3591 3969 4077 4329 4563 4617 4921 5103 5187 5439 5587 5733 5889 6253 6327 6669 6993 7371 7399 8281 8379 8607 8991 9139 9477 9513 9633 10101 10647 10773 11907 12103 12231 12987 13689 13741 13851 14763 15561 16317 16761 17199 17667 18759 18981 20007 20083 20979 22113 22197 22477 23569 24843 25137 25519 25821 26973 27417 28539 28899 30303 31941 32319 34447 35721 36309 36693 37297 38961 39109 41067 41223 43771 44289 46683 48951 50283 51597 53001 56277 56943 60021 60249 62937 63973 66339 66591 67431 70707 72631 74529 75411 76557 77463 82251 85617 86697 90909 95823 96187 96957 103341 106153 108927 110079 111891 116883 117327 118807 123201 123669 131313 132867 140049 140581 146853 150849 154791 157339 159003 168831 170829 178633 180063 180747 188811 191919 199773 202293 212121 217893 223587 226233 229671 232389 246753 256851 260091 261079 272727 273763 287469 288561 306397 310023 318459 326781 335673 350649 351981 356421 371007 393939 398601 420147 421743 440559 447811 452547 464373 472017 477009 484861 506493 508417 512487 535899 542241 575757 599319 606879 636363 653679 670761 678699 689013 697167 740259 743071 770553 780273 783237 818181 821289 831649 862407 865683 919191 930069 944203 955377 980343 1007019 1055943 1069263 1113021 1181817 1195803 1250431 1260441 1265229 1321677 1343433 1357641 1379989 1416051 1431027 1454583 1519479 1525251 1607697 1626723 1727271 1797957 1820637 1827553 1909089 1961037 2012283 2067039 2091501 2220777 2229213 2340819 2349711 2454543 2463867 2494947 2597049 2757573 2790207 2832609 2866131 2941029 3021057 3167829 3207789 3339063 3394027 3545451 3558919 3587409 3751293 3795687 4030299 4072923 4139967 4248153 4363749 4558437 4575753 4823091 4880169 5181813 5201497 5393871 5461911 5482659 5727267 5821543 5883111 6036849 6201117 6609421 6662331 6687639 7049133 7391601 7484841 7791147 8272719 8370621 8497827 8598393 8823087 9063171 9503487 9623367 9659923 10017189 10182081 10636353 10676757 11253879 11387061 12090897 12419901 12744459 13091247 13727259 14469273 14640507 15545439 15604491 16385733 16447977 17181801 17464629 17649333 17939857 18603351 19828263 20062917 21147399 22174803 22454523 23373441 23758189 24818157 25111863 25493481 25795179 27189513 28510461 28870101 28979769 30546243 31909059 32030271 33761637 34161183 36272691 37259703 38233377 39273741 41181777 43407819 46265947 46636317 46813473 49343931 52393887 52947999 53819571 59484789 60188751 63442197 66524409 67363569 67619461 70120323 71274567 74454471 76480443 77385537 86610303 86939307 91638729 96090813 101284911 102483549 108818073 111779109 114700131 117821223 123545331 125578999 130223457 138797841 140440419 148031793 157181661 161458713 178454367 180566253 190326591 199573227 202090707 202858383 213823701 223363413 229441329 260817921 274916187 288272439 303854733 326454219 335337327 353463669 370635993 376736997 416393523 421321257 444095379 471544983 484376139 535363101 541698759 606272121 608575149 641471103 688323987 782453763 824748561 864817317 879052993 911564199 1006011981 1130210991 1249180569 1263963771 1332286137 1414634949 1453128417 1606089303 1825725447 1924413309 2347361289 2474245683 2594451951 2637158979 3390632973 3747541707 3791891313 4243904847 4359385251 4818267909 5477176341 5773239927 7042083867 7911476937 10171898919 11242625121 13078155753 16431529023 17319719781 23734430811 30515696757 33727875363 49294587069 71203292433 91547090271 213609877299 640829631897
• Sum of all divisors σ(n): 1317053108160
• Sum of proper divisors (its aliquot sum) s(n): 676223476263
• 640829631897 is an abundant number, because the sum of its proper divisors (676223476263) is greater than itself. Its abundance is 35393844366

Bases of 640829631897

• Binary: 1001010100110100011011000010110110011001₂
• Hexadecimal: 0x95346C2D99
• Base-36: 86E5F0K9

Squares and roots of 640829631897

• 640829631897 squared (640829631897²) is 410662617117244519818609
• 640829631897 cubed (640829631897³) is 263164773761102456926299726680571273
• The square root of 640829631897 is 800518.3520051239
• The cube root of 640829631897 is 8621.4608767201

Scales and comparisons

• 640,829,631,897 seconds is equal to 20,376 years, 20 weeks, 5 days, 15 hours, 4 minutes, 57 seconds.
• To count from 1 to 640,829,631,897 would take you about forty thousand, seven hundred fifty-two 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 640829631897 cubic inches would be around 718.5 feet tall.

Recreational maths with 640829631897

• 640829631897 backwards is 798136928046
• 640829631897 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 640829631897's digits is 63
• More coming soon!