640725384606208

Names of 640725384606208

• Cardinal: 640725384606208 can be written as Six hundred forty trillion, seven hundred twenty-five billion, three hundred eighty-four million, six hundred six thousand, two hundred eight.

Scientific notation

• Scientific notation: 6.40725384606208 × 10¹⁴

Factors of 640725384606208

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 2803

Divisors of 640725384606208

• Number of divisors d(n): 300
• Complete list of divisors:
  1 2 4 8 11 16 22 32 44 64 88 121 128 176 181 242 256 352 362 484 512 704 724 968 1331 1408 1448 1936 1991 2609 2662 2816 2896 3872 3982 5218 5324 5632 5792 7744 7964 10436 10648 11584 14641 15488 15928 20872 21296 21901 23168 28699 29282 30976 31856 32761 41744 42592 43802 46336 57398 58564 61952 63712 65522 83488 85184 87604 92672 114796 117128 127424 131044 166976 170368 175208 229592 234256 240911 254848 262088 315689 333952 340736 350416 360371 459184 468512 472229 481822 509696 524176 631378 667904 681472 700832 720742 918368 937024 944458 963644 1019392 1048352 1262756 1335808 1401664 1441484 1836736 1874048 1888916 1927288 2096704 2525512 2650021 2803328 2882968 3472579 3673472 3748096 3777832 3854576 3964081 4193408 5051024 5194519 5300042 5606656 5765936 6945158 7346944 7496192 7555664 7709152 7928162 8386816 10102048 10389038 10600084 11213312 11531872 13890316 14693888 15111328 15418304 15856324 16773632 20204096 20778076 21200168 23063744 27780632 30222656 30836608 31712648 38198369 40408192 41556152 42400336 43604891 46127488 55561264 57139709 60445312 61673216 63425296 76396738 80816384 83112304 84800672 85473449 87209782 92254976 111122528 114279418 120890624 123346432 126850592 152793476 161632768 166224608 169601344 170946898 174419564 184509952 222245056 228558836 241781248 253701184 305586952 332449216 339202688 341893796 348839128 444490112 457117672 479653801 507402368 611173904 628536799 664898432 678405376 683787592 697678256 888980224 914235344 940207939 959307602 1014804736 1222347808 1257073598 1329796864 1356810752 1367575184 1395356512 1777960448 1828470688 1880415878 1918615204 2029609472 2444695616 2514147196 2659593728 2735150368 2790713024 3656941376 3760831756 3837230408 4889391232 5028294392 5470300736 5581426048 6913904789 7313882752 7521663512 7674460816 9778782464 10056588784 10342287329 10940601472 11162852096 13827809578 14627765504 15043327024 15348921632 19557564928 20113177568 20684574658 21881202944 22325704192 27655619156 29255531008 30086654048 30697843264 40226355136 41369149316 43762405888 55311238312 60173308096 61395686528 80452710272 82738298632 110622476624 113765160619 120346616192 122791373056 160905420544 165476597264 221244953248 227530321238 240693232384 245582746112 321810841088 330953194528 442489906496 455060642476 481386464768 661906389056 884979812992 910121284952 1251416766809 1323812778112 1769959625984 1820242569904 2502833533618 2647625556224 3539919251968 3640485139808 5005667067236 5295251112448 7280970279616 10011334134472 14561940559232 20022668268944 29123881118464 40045336537888 58247762236928 80090673075776 160181346151552 320362692303104 640725384606208
• Sum of all divisors σ(n): 1416576446460450
• Sum of proper divisors (its aliquot sum) s(n): 775851061854242
• 640725384606208 is an abundant number, because the sum of its proper divisors (775851061854242) is greater than itself. Its abundance is 135125677248034

Bases of 640725384606208

• Binary: 10010001101011110010000000111100101011001000000000₂
• Hexadecimal: 0x246BC80F2B200
• Base-36: 6B496EYE4G

Squares and roots of 640725384606208

• 640725384606208 squared (640725384606208²) is 410529018478773163535232139264
• 640725384606208 cubed (640725384606208³) is 263036363256821006288986531879433882054950912
• The square root of 640725384606208 is 25312553.8933985877
• The cube root of 640725384606208 is 86209.9335116971

Scales and comparisons

• 640,725,384,606,208 seconds is equal to 20,373,085 years, 17 weeks, 3 days, 13 hours, 43 minutes, 28 seconds.
• To count from 1 to 640,725,384,606,208 would take you about fifty million, nine hundred thirty-two thousand, seven hundred thirteen 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 640725384606208 cubic inches would be around 7184.2 feet tall.

Recreational maths with 640725384606208

• 640725384606208 backwards is 802606483527046
• The number of decimal digits it has is: 15
• The sum of 640725384606208's digits is 61
• More coming soon!