642334938
642,334,938 is an even composite number composed of seven prime numbers multiplied together.
642334938 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 642334938:
2 × 3 × 7 × 19 × 23 × 79 × 443
See below for interesting mathematical facts about the number 642334938 from the Numbermatics database.
Names of 642334938
- Cardinal: 642334938 can be written as Six hundred forty-two million, three hundred thirty-four thousand, nine hundred thirty-eight.
Scientific notation
- Scientific notation: 6.42334938 × 108
Factors of 642334938
Divisors of 642334938
- Number of divisors d(n): 128
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Complete list of divisors:
1 2 3 6 7 14 19 21 23 38 42 46 57 69 79 114 133 138 158 161 237 266 322 399 437 443 474 483 553 798 874 886 966 1106 1311 1329 1501 1659 1817 2622 2658 3002 3059 3101 3318 3634 4503 5451 6118 6202 8417 9006 9177 9303 10189 10507 10902 12719 16834 18354 18606 20378 21014 25251 25438 30567 31521 34523 34997 38157 50502 58919 61134 63042 69046 69994 71323 76314 103569 104991 117838 142646 176757 193591 207138 209982 213969 241661 244979 353514 387182 427938 483322 489958 580773 664943 724983 734937 804931 1161546 1329886 1355137 1449966 1469874 1609862 1994829 2414793 2710274 3989658 4065411 4654601 4829586 5634517 8130822 9309202 11269034 13963803 15293689 16903551 27927606 30587378 33807102 45881067 91762134 107055823 214111646 321167469 642334938
- Sum of all divisors σ(n): 1636761600
- Sum of proper divisors (its aliquot sum) s(n): 994426662
- 642334938 is an abundant number, because the sum of its proper divisors (994426662) is greater than itself. Its abundance is 352091724
Bases of 642334938
- Binary: 1001100100100101000000110110102
- Hexadecimal: 0x264940DA
- Base-36: AMFGT6
Squares and roots of 642334938
- 642334938 squared (6423349382) is 412594172575463844
- 642334938 cubed (6423349383) is 265023652260421868556981672
-
The
square root of 642334938 is 25344.3275310275 -
The
cube root of 642334938 is 862.8206189649
Scales and comparisons
How big is 642334938?- 642,334,938 seconds is equal to 20 years, 22 weeks, 10 hours, 22 minutes, 18 seconds.
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To count from 1 to 642,334,938 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 642334938 cubic inches would be around 71.9 feet tall.
Recreational maths with 642334938
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