668121472
668,121,472 is an even composite number composed of three prime numbers multiplied together.
668121472 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 668121472:
27 × 193 × 761
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 19 × 19 × 19 × 761)See below for interesting mathematical facts about the number 668121472 from the Numbermatics database.
Names of 668121472
- Cardinal: 668121472 can be written as Six hundred sixty-eight million, one hundred twenty-one thousand, four hundred seventy-two.
Scientific notation
- Scientific notation: 6.68121472 × 108
Factors of 668121472
Divisors of 668121472
- Number of divisors d(n): 64
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Complete list of divisors:
1 2 4 8 16 19 32 38 64 76 128 152 304 361 608 722 761 1216 1444 1522 2432 2888 3044 5776 6088 6859 11552 12176 13718 14459 23104 24352 27436 28918 46208 48704 54872 57836 97408 109744 115672 219488 231344 274721 438976 462688 549442 877952 925376 1098884 1850752 2197768 4395536 5219699 8791072 10439398 17582144 20878796 35164288 41757592 83515184 167030368 334060736 668121472
- Sum of all divisors σ(n): 1406804400
- Sum of proper divisors (its aliquot sum) s(n): 738682928
- 668121472 is an abundant number, because the sum of its proper divisors (738682928) is greater than itself. Its abundance is 70561456
Bases of 668121472
- Binary: 1001111101001010111001100000002
- Hexadecimal: 0x27D2B980
- Base-36: B1S5TS
Squares and roots of 668121472
- 668121472 squared (6681214722) is 446386301347446784
- 668121472 cubed (6681214723) is 298240272736891728767746048
-
The
square root of 668121472 is 25848.0458062113 -
The
cube root of 668121472 is 874.2154478313
Scales and comparisons
How big is 668121472?- 668,121,472 seconds is equal to 21 years, 12 weeks, 4 days, 21 hours, 17 minutes, 52 seconds.
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To count from 1 to 668,121,472 would take you about thirty-one 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 668121472 cubic inches would be around 72.9 feet tall.
Recreational maths with 668121472
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