145385121840
145,385,121,840 is an even composite number composed of seven prime numbers multiplied together.
145385121840 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of three hundred twenty divisors.
Prime factorization of 145385121840:
24 × 3 × 5 × 7 × 31 × 233 × 11981
(2 × 2 × 2 × 2 × 3 × 5 × 7 × 31 × 233 × 11981)See below for interesting mathematical facts about the number 145385121840 from the Numbermatics database.
Names of 145385121840
- Cardinal: 145385121840 can be written as One hundred forty-five billion, three hundred eighty-five million, one hundred twenty-one thousand, eight hundred forty.
Scientific notation
- Scientific notation: 1.4538512184 × 1011
Factors of 145385121840
Divisors of 145385121840
- Number of divisors d(n): 320
-
Complete list of divisors:
1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 31 35 40 42 48 56 60 62 70 80 84 93 105 112 120 124 140 155 168 186 210 217 233 240 248 280 310 336 372 420 434 465 466 496 560 620 651 699 744 840 868 930 932 1085 1165 1240 1302 1398 1488 1631 1680 1736 1860 1864 2170 2330 2480 2604 2796 3255 3262 3472 3495 3720 3728 4340 4660 4893 5208 5592 6510 6524 6990 7223 7440 8155 8680 9320 9786 10416 11184 11981 13020 13048 13980 14446 16310 17360 18640 19572 21669 23962 24465 26040 26096 27960 28892 32620 35943 36115 39144 43338 47924 48930 50561 52080 55920 57784 59905 65240 71886 72230 78288 83867 86676 95848 97860 101122 108345 115568 119810 130480 143772 144460 151683 167734 173352 179715 191696 195720 202244 216690 239620 251601 252805 287544 288920 303366 335468 346704 359430 371411 391440 404488 419335 433380 479240 503202 505610 575088 577840 606732 670936 718860 742822 758415 808976 838670 866760 958480 1006404 1011220 1114233 1213464 1258005 1341872 1437720 1485644 1516830 1677340 1733520 1857055 2012808 2022440 2228466 2426928 2516010 2599877 2791573 2875440 2971288 3033660 3354680 3714110 4025616 4044880 4456932 5032020 5199754 5571165 5583146 5942576 6067320 6709360 7428220 7799631 8374719 8913864 10064040 10399508 11142330 11166292 12134640 12999385 13957865 14856440 15599262 16749438 17827728 19541011 20128080 20799016 22284660 22332584 25998770 27915730 29712880 31198524 33498876 38998155 39082022 41598032 41873595 44569320 44665168 51997540 55831460 58623033 62397048 66997752 77996310 78164044 83747190 86538763 89138640 97705055 103995080 111662920 117246066 124794096 133995504 155992620 156328088 167494380 173077526 195410110 207990160 223325840 234492132 259616289 293115165 311985240 312656176 334988760 346155052 390820220 432693815 468984264 519232578 586230330 605771341 623970480 669977520 692310104 781640440 865387630 937968528 1038465156 1172460660 1211542682 1298081445 1384620208 1563280880 1730775260 1817314023 2076930312 2344921320 2423085364 2596162890 3028856705 3461550520 3634628046 4153860624 4689842640 4846170728 5192325780 6057713410 6923101040 7269256092 9086570115 9692341456 10384651560 12115426820 14538512184 18173140230 20769303120 24230853640 29077024368 36346280460 48461707280 72692560920 145385121840
- Sum of all divisors σ(n): 534020677632
- Sum of proper divisors (its aliquot sum) s(n): 388635555792
- 145385121840 is an abundant number, because the sum of its proper divisors (388635555792) is greater than itself. Its abundance is 243250433952
Bases of 145385121840
- Binary: 100001110110011010000011101000001100002
- Hexadecimal: 0x21D9A0E830
- Base-36: 1USEJPYO
Squares and roots of 145385121840
- 145385121840 squared (1453851218402) is 21136833652431644985600
- 145385121840 cubed (1453851218403) is 3072981135870586918503081045504000
-
The
square root of 145385121840 is 381294.0097090433 -
The
cube root of 145385121840 is 5258.2349593627
Scales and comparisons
How big is 145385121840?- 145,385,121,840 seconds is equal to 4,622 years, 41 weeks, 3 days, 4 hours, 4 minutes.
-
To count from 1 to 145,385,121,840 would take you about nine thousand, two hundred forty-five 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 145385121840 cubic inches would be around 438.2 feet tall.
Recreational maths with 145385121840
- 145385121840 backwards is 048121583541
- 145385121840 is a
Harshad number . - The number of decimal digits it has is: 12
- The sum of 145385121840's digits is 42
- More coming soon!
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