138171420
138,171,420 is an even composite number composed of five prime numbers multiplied together.
138171420 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred eighty divisors.
Prime factorization of 138171420:
22 × 34 × 5 × 19 × 672
(2 × 2 × 3 × 3 × 3 × 3 × 5 × 19 × 67 × 67)See below for interesting mathematical facts about the number 138171420 from the Numbermatics database.
Names of 138171420
- Cardinal: 138171420 can be written as One hundred thirty-eight million, one hundred seventy-one thousand, four hundred twenty.
Scientific notation
- Scientific notation: 1.3817142 × 108
Factors of 138171420
Divisors of 138171420
- Number of divisors d(n): 180
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Complete list of divisors:
1 2 3 4 5 6 9 10 12 15 18 19 20 27 30 36 38 45 54 57 60 67 76 81 90 95 108 114 134 135 162 171 180 190 201 228 268 270 285 324 335 342 380 402 405 513 540 570 603 670 684 804 810 855 1005 1026 1140 1206 1273 1340 1539 1620 1710 1809 2010 2052 2412 2546 2565 3015 3078 3420 3618 3819 4020 4489 5092 5130 5427 6030 6156 6365 7236 7638 7695 8978 9045 10260 10854 11457 12060 12730 13467 15276 15390 17956 18090 19095 21708 22445 22914 25460 26934 27135 30780 34371 36180 38190 40401 44890 45828 53868 54270 57285 67335 68742 76380 80802 85291 89780 103113 108540 114570 121203 134670 137484 161604 170582 171855 202005 206226 229140 242406 255873 269340 341164 343710 363609 404010 412452 426455 484812 511746 515565 606015 687420 727218 767619 808020 852910 1023492 1031130 1212030 1279365 1454436 1535238 1705820 1818045 2062260 2302857 2424060 2558730 3070476 3636090 3838095 4605714 5117460 6908571 7272180 7676190 9211428 11514285 13817142 15352380 23028570 27634284 34542855 46057140 69085710 138171420
- Sum of all divisors σ(n): 463173480
- Sum of proper divisors (its aliquot sum) s(n): 325002060
- 138171420 is an abundant number, because the sum of its proper divisors (325002060) is greater than itself. Its abundance is 186830640
Bases of 138171420
- Binary: 10000011110001010100000111002
- Hexadecimal: 0x83C541C
- Base-36: 2A9HR0
Squares and roots of 138171420
- 138171420 squared (1381714202) is 19091341304816400
- 138171420 cubed (1381714203) is 2637877737791134827288000
-
The
square root of 138171420 is 11754.6339798397 -
The
cube root of 138171420 is 516.9788073375
Scales and comparisons
How big is 138171420?- 138,171,420 seconds is equal to 4 years, 20 weeks, 3 days, 4 hours, 57 minutes.
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To count from 1 to 138,171,420 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 138171420 cubic inches would be around 43.1 feet tall.
Recreational maths with 138171420
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