145721268
145,721,268 is an even composite number composed of five prime numbers multiplied together.
145721268 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of two hundred fifty-two divisors.
Prime factorization of 145721268:
22 × 36 × 7 × 112 × 59
(2 × 2 × 3 × 3 × 3 × 3 × 3 × 3 × 7 × 11 × 11 × 59)See below for interesting mathematical facts about the number 145721268 from the Numbermatics database.
Names of 145721268
- Cardinal: 145721268 can be written as One hundred forty-five million, seven hundred twenty-one thousand, two hundred sixty-eight.
Scientific notation
- Scientific notation: 1.45721268 × 108
Factors of 145721268
Divisors of 145721268
- Number of divisors d(n): 252
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Complete list of divisors:
1 2 3 4 6 7 9 11 12 14 18 21 22 27 28 33 36 42 44 54 59 63 66 77 81 84 99 108 118 121 126 132 154 162 177 189 198 231 236 242 243 252 297 308 324 354 363 378 396 413 462 484 486 531 567 594 649 693 708 726 729 756 826 847 891 924 972 1062 1089 1134 1188 1239 1298 1386 1452 1458 1593 1652 1694 1701 1782 1947 2079 2124 2178 2268 2478 2541 2596 2673 2772 2916 3186 3267 3388 3402 3564 3717 3894 4158 4356 4543 4779 4956 5082 5103 5346 5841 6237 6372 6534 6804 7139 7434 7623 7788 8019 8316 9086 9558 9801 10164 10206 10692 11151 11682 12474 13068 13629 14278 14337 14868 15246 16038 17523 18172 18711 19116 19602 20412 21417 22302 22869 23364 24948 27258 28556 28674 29403 30492 32076 33453 35046 37422 39204 40887 42834 43011 44604 45738 49973 52569 54516 56133 57348 58806 64251 66906 68607 70092 74844 81774 85668 86022 88209 91476 99946 100359 105138 112266 117612 122661 128502 133812 137214 149919 157707 163548 172044 176418 192753 199892 200718 205821 210276 224532 245322 257004 274428 299838 301077 315414 352836 367983 385506 401436 411642 449757 473121 490644 578259 599676 602154 617463 630828 735966 771012 823284 899514 946242 1103949 1156518 1204308 1234926 1349271 1471932 1734777 1799028 1892484 2207898 2313036 2469852 2698542 3311847 3469554 4047813 4415796 5204331 5397084 6623694 6939108 8095626 10408662 12143439 13247388 16191252 20817324 24286878 36430317 48573756 72860634 145721268
- Sum of all divisors σ(n): 488439840
- Sum of proper divisors (its aliquot sum) s(n): 342718572
- 145721268 is an abundant number, because the sum of its proper divisors (342718572) is greater than itself. Its abundance is 196997304
Bases of 145721268
- Binary: 10001010111110000111101101002
- Hexadecimal: 0x8AF87B4
- Base-36: 2ERB90
Squares and roots of 145721268
- 145721268 squared (1457212682) is 21234687947527824
- 145721268 cubed (1457212683) is 3094345653298071978560832
-
The
square root of 145721268 is 12071.5064511435 -
The
cube root of 145721268 is 526.2284376457
Scales and comparisons
How big is 145721268?- 145,721,268 seconds is equal to 4 years, 32 weeks, 6 days, 14 hours, 7 minutes, 48 seconds.
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To count from 1 to 145,721,268 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 145721268 cubic inches would be around 43.9 feet tall.
Recreational maths with 145721268
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