145721070
145,721,070 is an even composite number composed of seven prime numbers multiplied together.
145721070 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of one hundred ninety-two divisors.
Prime factorization of 145721070:
2 × 32 × 5 × 11 × 19 × 61 × 127
(2 × 3 × 3 × 5 × 11 × 19 × 61 × 127)See below for interesting mathematical facts about the number 145721070 from the Numbermatics database.
Names of 145721070
- Cardinal: 145721070 can be written as One hundred forty-five million, seven hundred twenty-one thousand and seventy.
Scientific notation
- Scientific notation: 1.4572107 × 108
Factors of 145721070
Divisors of 145721070
- Number of divisors d(n): 192
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Complete list of divisors:
1 2 3 5 6 9 10 11 15 18 19 22 30 33 38 45 55 57 61 66 90 95 99 110 114 122 127 165 171 183 190 198 209 254 285 305 330 342 366 381 418 495 549 570 610 627 635 671 762 855 915 990 1045 1098 1143 1159 1254 1270 1342 1397 1710 1830 1881 1905 2013 2090 2286 2318 2413 2745 2794 3135 3355 3477 3762 3810 4026 4191 4826 5490 5715 5795 6039 6270 6710 6954 6985 7239 7747 8382 9405 10065 10431 11430 11590 12065 12078 12573 12749 13970 14478 15494 17385 18810 20130 20862 20955 21717 23241 24130 25146 25498 26543 30195 34770 36195 38247 38735 41910 43434 46482 52155 53086 60390 62865 63745 69723 72390 76494 77470 79629 85217 104310 108585 114741 116205 125730 127490 132715 139446 147193 159258 170434 191235 217170 229482 232410 238887 255651 265430 294386 348615 382470 398145 426085 441579 477774 511302 573705 697230 735965 766953 796290 852170 883158 1147410 1194435 1278255 1324737 1471930 1533906 1619123 2207895 2388870 2556510 2649474 3238246 3834765 4415790 4857369 6623685 7669530 8095615 9714738 13247370 14572107 16191230 24286845 29144214 48573690 72860535 145721070
- Sum of all divisors σ(n): 445685760
- Sum of proper divisors (its aliquot sum) s(n): 299964690
- 145721070 is an abundant number, because the sum of its proper divisors (299964690) is greater than itself. Its abundance is 154243620
Bases of 145721070
- Binary: 10001010111110000110111011102
- Hexadecimal: 0x8AF86EE
- Base-36: 2ERB3I
Squares and roots of 145721070
- 145721070 squared (1457210702) is 21234630241944900
- 145721070 cubed (1457210703) is 3094333039910569709043000
-
The
square root of 145721070 is 12071.4982500103 -
The
cube root of 145721070 is 526.2281993063
Scales and comparisons
How big is 145721070?- 145,721,070 seconds is equal to 4 years, 32 weeks, 6 days, 14 hours, 4 minutes, 30 seconds.
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To count from 1 to 145,721,070 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 145721070 cubic inches would be around 43.9 feet tall.
Recreational maths with 145721070
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