129638400
129,638,400 is an even composite number composed of four prime numbers multiplied together.
129638400 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred sixty-eight divisors.
Prime factorization of 129638400:
213 × 3 × 52 × 211
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 5 × 5 × 211)See below for interesting mathematical facts about the number 129638400 from the Numbermatics database.
Names of 129638400
- Cardinal: 129638400 can be written as One hundred twenty-nine million, six hundred thirty-eight thousand, four hundred.
Scientific notation
- Scientific notation: 1.296384 × 108
Factors of 129638400
Divisors of 129638400
- Number of divisors d(n): 168
-
Complete list of divisors:
1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 32 40 48 50 60 64 75 80 96 100 120 128 150 160 192 200 211 240 256 300 320 384 400 422 480 512 600 633 640 768 800 844 960 1024 1055 1200 1266 1280 1536 1600 1688 1920 2048 2110 2400 2532 2560 3072 3165 3200 3376 3840 4096 4220 4800 5064 5120 5275 6144 6330 6400 6752 7680 8192 8440 9600 10128 10240 10550 12288 12660 12800 13504 15360 15825 16880 19200 20256 20480 21100 24576 25320 25600 27008 30720 31650 33760 38400 40512 40960 42200 50640 51200 54016 61440 63300 67520 76800 81024 84400 101280 102400 108032 122880 126600 135040 153600 162048 168800 202560 204800 216064 253200 270080 307200 324096 337600 405120 432128 506400 540160 614400 648192 675200 810240 864256 1012800 1080320 1296384 1350400 1620480 1728512 2025600 2160640 2592768 2700800 3240960 4051200 4321280 5185536 5401600 6481920 8102400 8642560 10803200 12963840 16204800 21606400 25927680 32409600 43212800 64819200 129638400
- Sum of all divisors σ(n): 430676304
- Sum of proper divisors (its aliquot sum) s(n): 301037904
- 129638400 is an abundant number, because the sum of its proper divisors (301037904) is greater than itself. Its abundance is 171399504
Bases of 129638400
- Binary: 1111011101000100000000000002
- Hexadecimal: 0x7BA2000
- Base-36: 256LMO
Squares and roots of 129638400
- 129638400 squared (1296384002) is 16806114754560000
- 129638400 cubed (1296384003) is 2178717826997551104000000
-
The
square root of 129638400 is 11385.8859997807 -
The
cube root of 129638400 is 506.1095754405
Scales and comparisons
How big is 129638400?- 129,638,400 seconds is equal to 4 years, 6 weeks, 2 days, 10 hours, 40 minutes.
-
To count from 1 to 129,638,400 would take you about six 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 129638400 cubic inches would be around 42.2 feet tall.
Recreational maths with 129638400
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