640080064
640,080,064 is an even composite number composed of five prime numbers multiplied together.
640080064 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred sixty-eight divisors.
Prime factorization of 640080064:
26 × 132 × 23 × 31 × 83
(2 × 2 × 2 × 2 × 2 × 2 × 13 × 13 × 23 × 31 × 83)See below for interesting mathematical facts about the number 640080064 from the Numbermatics database.
Names of 640080064
- Cardinal: 640080064 can be written as Six hundred forty million, eighty thousand and sixty-four.
Scientific notation
- Scientific notation: 6.40080064 × 108
Factors of 640080064
Divisors of 640080064
- Number of divisors d(n): 168
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Complete list of divisors:
1 2 4 8 13 16 23 26 31 32 46 52 62 64 83 92 104 124 166 169 184 208 248 299 332 338 368 403 416 496 598 664 676 713 736 806 832 992 1079 1196 1328 1352 1426 1472 1612 1909 1984 2158 2392 2573 2656 2704 2852 3224 3818 3887 4316 4784 5146 5239 5312 5408 5704 6448 7636 7774 8632 9269 9568 10292 10478 10816 11408 12896 14027 15272 15548 17264 18538 19136 20584 20956 22816 24817 25792 28054 30544 31096 33449 34528 37076 41168 41912 45632 49634 56108 59179 61088 62192 66898 69056 74152 82336 83824 99268 112216 118358 120497 122176 124384 133796 148304 164672 167648 198536 224432 236716 240994 248768 267592 296608 322621 335296 397072 434837 448864 473432 481988 535184 593216 645242 769327 794144 869674 897728 946864 963976 1070368 1290484 1538654 1588288 1739348 1893728 1927952 2140736 2580968 3077308 3478696 3787456 3855904 5161936 6154616 6957392 7711808 10001251 10323872 12309232 13914784 20002502 20647744 24618464 27829568 40005004 49236928 80010008 160020016 320040032 640080064
- Sum of all divisors σ(n): 1499323392
- Sum of proper divisors (its aliquot sum) s(n): 859243328
- 640080064 is an abundant number, because the sum of its proper divisors (859243328) is greater than itself. Its abundance is 219163264
Bases of 640080064
- Binary: 1001100010011011011000110000002
- Hexadecimal: 0x2626D8C0
- Base-36: AL34XS
Squares and roots of 640080064
- 640080064 squared (6400800642) is 409702488330244096
- 640080064 cubed (6400800643) is 262242394951381894103302144
-
The
square root of 640080064 is 25299.8036356017 -
The
cube root of 640080064 is 861.8098104849
Scales and comparisons
How big is 640080064?- 640,080,064 seconds is equal to 20 years, 18 weeks, 2 days, 8 hours, 1 minute, 4 seconds.
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To count from 1 to 640,080,064 would take you about thirty 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 640080064 cubic inches would be around 71.8 feet tall.
Recreational maths with 640080064
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