145271490
145,271,490 is an even composite number composed of seven prime numbers multiplied together.
145271490 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 145271490:
2 × 3 × 5 × 7 × 13 × 127 × 419
See below for interesting mathematical facts about the number 145271490 from the Numbermatics database.
Names of 145271490
- Cardinal: 145271490 can be written as One hundred forty-five million, two hundred seventy-one thousand, four hundred ninety.
Scientific notation
- Scientific notation: 1.4527149 × 108
Factors of 145271490
Divisors of 145271490
- Number of divisors d(n): 128
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Complete list of divisors:
1 2 3 5 6 7 10 13 14 15 21 26 30 35 39 42 65 70 78 91 105 127 130 182 195 210 254 273 381 390 419 455 546 635 762 838 889 910 1257 1270 1365 1651 1778 1905 2095 2514 2667 2730 2933 3302 3810 4190 4445 4953 5334 5447 5866 6285 8255 8799 8890 9906 10894 11557 12570 13335 14665 16341 16510 17598 23114 24765 26670 27235 29330 32682 34671 38129 43995 49530 53213 54470 57785 69342 76258 81705 87990 106426 114387 115570 159639 163410 173355 190645 228774 266065 319278 346710 372491 381290 532130 571935 691769 744982 798195 1117473 1143870 1383538 1596390 1862455 2075307 2234946 3458845 3724910 4150614 4842383 5587365 6917690 9684766 10376535 11174730 14527149 20753070 24211915 29054298 48423830 72635745 145271490
- Sum of all divisors σ(n): 433520640
- Sum of proper divisors (its aliquot sum) s(n): 288249150
- 145271490 is an abundant number, because the sum of its proper divisors (288249150) is greater than itself. Its abundance is 142977660
Bases of 145271490
- Binary: 10001010100010101010110000102
- Hexadecimal: 0x8A8AAC2
- Base-36: 2EHO76
Squares and roots of 145271490
- 145271490 squared (1452714902) is 21103805806820100
- 145271490 cubed (1452714903) is 3065781314227408088949000
-
The
square root of 145271490 is 12052.8623156495 -
The
cube root of 145271490 is 525.6864670937
Scales and comparisons
How big is 145271490?- 145,271,490 seconds is equal to 4 years, 32 weeks, 1 day, 9 hours, 11 minutes, 30 seconds.
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To count from 1 to 145,271,490 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 145271490 cubic inches would be around 43.8 feet tall.
Recreational maths with 145271490
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