640032000400

Names of 640032000400

• Cardinal: 640032000400 can be written as Six hundred forty billion, thirty-two million, four hundred.

Scientific notation

• Scientific notation: 6.400320004 × 10¹¹

Factors of 640032000400

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 218

Divisors of 640032000400

• Number of divisors d(n): 405
• Complete list of divisors:
  1 2 4 5 8 10 13 16 17 20 25 26 34 40 50 52 65 68 80 85 100 104 130 136 169 170 181 200 208 221 260 272 289 325 338 340 362 400 425 442 520 578 650 676 680 724 845 850 884 905 1040 1105 1156 1300 1352 1360 1445 1448 1690 1700 1768 1810 2210 2312 2353 2600 2704 2873 2890 2896 3077 3380 3400 3536 3620 3757 4225 4420 4525 4624 4706 5200 5525 5746 5780 6154 6760 6800 7225 7240 7514 8450 8840 9050 9412 11050 11492 11560 11765 12308 13520 14365 14450 14480 15028 15385 16900 17680 18100 18785 18824 22100 22984 23120 23530 24616 28730 28900 30056 30589 30770 32761 33800 36200 37570 37648 40001 44200 45968 47060 48841 49232 52309 57460 57800 58825 60112 61178 61540 65522 67600 71825 72400 75140 76925 80002 88400 93925 94120 97682 104618 114920 115600 117650 122356 123080 131044 143650 150280 152945 153850 160004 163805 187850 188240 195364 200005 209236 229840 235300 244205 244712 246160 261545 262088 287300 300560 305890 307700 320008 327610 375700 390728 400010 418472 425893 470600 488410 489424 520013 523090 524176 556937 574600 611780 615400 640016 655220 680017 751400 764725 781456 800020 819025 836944 851786 941200 976820 1000025 1040026 1046180 1113874 1149200 1221025 1223560 1230800 1307725 1310440 1360034 1502800 1529450 1600040 1638050 1703572 1953640 2000050 2080052 2092360 2129465 2227748 2442050 2447120 2600065 2615450 2620880 2720068 2784685 3058900 3200080 3276100 3400085 3407144 3907280 4000100 4160104 4184720 4258930 4455496 4884100 5200130 5230900 5440136 5536609 5569370 6117800 6552200 6800170 6814288 7240181 8000200 8320208 8517860 8840221 8910992 9467929 9768200 10400260 10461800 10647325 10880272 11073218 11138740 12235600 13000325 13104400 13600340 13923425 14480362 16000400 17000425 17035720 17680442 18935858 19536400 20800520 20923600 21294650 22146436 22277480 26000650 27200680 27683045 27846850 28960724 34000850 34071440 35360884 36200905 37871716 41601040 42589300 44201105 44292872 44554960 47339645 52001300 54401360 55366090 55693700 57921448 68001700 70721768 72401810 75743432 85178600 88402210 88585744 94122353 94679290 104002600 110732180 111387400 115842896 123083077 136003400 138415225 141443536 144803620 151486864 170357200 176804420 181004525 188244706 189358580 208005200 221005525 221464360 222774800 236698225 246166154 272006800 276830450 289607240 353608840 362009050 376489412 378717160 442011050 442928720 470611765 473396450 492332308 553660900 579214480 615415385 707217680 724018100 752978824 757434320 884022100 941223530 946792900 984664616 1107321800 1230830770 1448036200 1505957648 1600080001 1768044200 1882447060 1893585800 1969329232 2214643600 2353058825 2461661540 2896072400 3077076925 3200160002 3536088400 3764894120 3787171600 4706117650 4923323080 6154153850 6400320004 7529788240 8000400005 9412235300 9846646160 12308307700 12800640008 16000800010 18824470600 24616615400 25601280016 32001600020 37648941200 40002000025 49233230800 64003200040 80004000050 128006400080 160008000100 320016000200 640032000400
• Sum of all divisors σ(n): 1778590626363
• Sum of proper divisors (its aliquot sum) s(n): 1138558625963
• 640032000400 is an abundant number, because the sum of its proper divisors (1138558625963) is greater than itself. Its abundance is 498526625563

Bases of 640032000400

• Binary: 1001010100000100111000010100100110010000₂
• Hexadecimal: 0x9504E14990
• Base-36: 860YJ05S

Squares and roots of 640032000400

• 640032000400 squared (640032000400²) is 409640961536025600160000
• 640032000400 cubed (640032000400³) is 262183324057681921536015360064000000
• 640032000400 is a perfect square number. Its square root is 800020
• The cube root of 640032000400 is 8617.8823885085

Scales and comparisons

• 640,032,000,400 seconds is equal to 20,351 years, 1 week, 6 days, 18 hours, 46 minutes, 40 seconds.
• To count from 1 to 640,032,000,400 would take you about forty thousand, seven hundred 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 640032000400 cubic inches would be around 718.2 feet tall.

Recreational maths with 640032000400

• 640032000400 backwards is 004000230046
• The number of decimal digits it has is: 12
• The sum of 640032000400's digits is 19
• More coming soon!