155172420
155,172,420 is an even composite number composed of five prime numbers multiplied together.
155172420 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred eight divisors.
Prime factorization of 155172420:
22 × 32 × 5 × 132 × 5101
(2 × 2 × 3 × 3 × 5 × 13 × 13 × 5101)See below for interesting mathematical facts about the number 155172420 from the Numbermatics database.
Names of 155172420
- Cardinal: 155172420 can be written as One hundred fifty-five million, one hundred seventy-two thousand, four hundred twenty.
Scientific notation
- Scientific notation: 1.5517242 × 108
Factors of 155172420
Divisors of 155172420
- Number of divisors d(n): 108
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Complete list of divisors:
1 2 3 4 5 6 9 10 12 13 15 18 20 26 30 36 39 45 52 60 65 78 90 117 130 156 169 180 195 234 260 338 390 468 507 585 676 780 845 1014 1170 1521 1690 2028 2340 2535 3042 3380 5070 5101 6084 7605 10140 10202 15210 15303 20404 25505 30420 30606 45909 51010 61212 66313 76515 91818 102020 132626 153030 183636 198939 229545 265252 306060 331565 397878 459090 596817 663130 795756 862069 918180 994695 1193634 1326260 1724138 1989390 2387268 2586207 2984085 3448276 3978780 4310345 5172414 5968170 7758621 8620690 10344828 11936340 12931035 15517242 17241380 25862070 31034484 38793105 51724140 77586210 155172420
- Sum of all divisors σ(n): 509781636
- Sum of proper divisors (its aliquot sum) s(n): 354609216
- 155172420 is an abundant number, because the sum of its proper divisors (354609216) is greater than itself. Its abundance is 199436796
Bases of 155172420
- Binary: 10010011111110111110010001002
- Hexadecimal: 0x93FBE44
- Base-36: 2KDVT0
Squares and roots of 155172420
- 155172420 squared (1551724202) is 24078479928656400
- 155172420 cubed (1551724203) is 3736316000451040936488000
-
The
square root of 155172420 is 12456.8222271975 -
The
cube root of 155172420 is 537.3676414677
Scales and comparisons
How big is 155172420?- 155,172,420 seconds is equal to 4 years, 48 weeks, 3 days, 23 hours, 27 minutes.
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To count from 1 to 155,172,420 would take you about seven 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 155172420 cubic inches would be around 44.8 feet tall.
Recreational maths with 155172420
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The information we have on file for 155172420 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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