145721291730

Names of 145721291730

• Cardinal: 145721291730 can be written as One hundred forty-five billion, seven hundred twenty-one million, two hundred ninety-one thousand, seven hundred thirty.

Scientific notation

• Scientific notation: 1.4572129173 × 10¹¹

Factors of 145721291730

• Number of distinct prime factors ω(n): 9
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1994

Divisors of 145721291730

• Number of divisors d(n): 512
• Complete list of divisors:
  1 2 3 5 6 7 10 14 15 17 19 21 30 31 34 35 37 38 42 51 57 62 70 74 85 93 95 102 105 111 114 119 133 155 170 185 186 190 210 217 222 238 255 259 266 285 310 323 357 370 399 434 465 510 518 527 555 570 589 595 629 646 651 665 703 714 777 798 930 969 1054 1085 1110 1147 1178 1190 1258 1295 1302 1330 1406 1554 1581 1615 1767 1785 1873 1887 1938 1995 2109 2170 2261 2294 2590 2635 2945 3145 3162 3230 3255 3441 3515 3534 3570 3689 3746 3774 3885 3990 4123 4218 4403 4522 4845 4921 5270 5619 5735 5890 6290 6510 6783 6882 7030 7378 7770 7905 8029 8246 8806 8835 9365 9435 9690 9842 10013 10545 11067 11238 11305 11470 11951 12369 13111 13209 13566 14763 15810 16058 17205 17670 18445 18730 18870 19499 20026 20615 21090 21793 22015 22134 22610 23902 24087 24605 24738 26222 26418 28095 29526 30039 31841 33915 34410 35587 35853 36890 38998 39333 40145 41230 43586 44030 48174 49210 50065 55335 56190 58063 58497 59755 60078 61845 63682 65379 65555 66045 67830 69301 70091 71174 71706 73815 78666 80290 83657 95523 97495 100130 106761 108965 110670 116126 116994 119510 120435 123690 130758 131110 132090 136493 138602 140182 147630 150195 152551 159205 167314 174189 177935 179265 191046 194990 196665 207903 210273 213522 217930 222887 240870 249109 250971 272986 290315 292485 300390 305102 318410 326895 346505 348378 350455 355870 358530 370481 393330 406441 409479 415806 418285 420546 445774 457653 477615 485107 498218 501942 533805 580630 584970 604979 653790 668661 682465 693010 700910 740962 747327 762755 812882 818958 836570 870945 915306 955230 970214 987071 1039515 1051365 1067610 1103197 1111443 1114435 1178117 1209958 1219323 1245545 1254855 1316719 1337322 1364930 1455321 1494654 1525510 1741890 1814937 1852405 1974142 2032205 2047395 2079030 2102730 2148331 2206394 2222886 2228870 2288265 2356234 2425535 2438646 2491090 2509710 2593367 2633438 2910642 2961213 3024895 3309591 3343305 3534351 3629874 3704810 3736635 3950157 4064410 4094790 4234853 4296662 4576530 4851070 4935355 5186734 5515985 5557215 5890585 5922426 6049790 6096615 6444993 6583595 6619182 6686610 6909497 7068702 7276605 7473270 7722379 7780101 7900314 8246819 8469706 9074685 9217033 9870710 10741655 11031970 11114430 11781170 12193230 12704559 12889986 12966835 13167190 13818994 14553210 14806065 15038317 15444758 15560202 16493638 16547955 17671755 18149370 18434066 18754349 19750785 20728491 21174265 21483310 22384223 23167137 24740457 25409118 25933670 27651099 29612130 30076634 32224965 33095910 34547485 35343510 36521627 37508698 38611895 38900505 39501570 40818289 41234095 41456982 42348530 44768446 45114951 46085165 46334274 49480914 55302198 56263047 63522795 64449930 67152669 69094970 73043254 75191585 77223790 77801010 81636578 82468190 90229902 92170330 93771745 103642455 109564881 111921115 112526094 115835685 122454867 123702285 127045590 131280443 134305338 138255495 150383170 156689561 182608135 187543490 204091445 207284910 219129762 223842230 225574755 231671370 244909734 247404570 255651389 262560886 276510990 281315235 285728023 313379122 335763345 365216270 393841329 408182890 451149510 470068683 511302778 547824405 562630470 571456046 612274335 656402215 671526690 693910913 766954167 783447805 787682658 857184069 940137366 1095648810 1224548670 1278256945 1312804430 1387821826 1428640115 1533908334 1566895610 1714368138 1969206645 2081732739 2350343415 2556513890 2857280230 3469554565 3834770835 3938413290 4163465478 4285920345 4700686830 4857376391 6939109130 7669541670 8571840690 9714752782 10408663695 14572129173 20817327390 24286881955 29144258346 48573763910 72860645865 145721291730
• Sum of all divisors σ(n): 472528650240
• Sum of proper divisors (its aliquot sum) s(n): 326807358510
• 145721291730 is an abundant number, because the sum of its proper divisors (326807358510) is greater than itself. Its abundance is 181086066780

Bases of 145721291730

• Binary: 10000111101101101010100111001111010010₂
• Hexadecimal: 0x21EDAA73D2
• Base-36: 1UXYP0B6

Squares and roots of 145721291730

• 145721291730 squared (145721291730²) is 21234694863459766392900
• 145721291730 cubed (145721291730³) is 3094347164995753135657430700717000
• The square root of 145721291730 is 381734.5828321033
• The cube root of 145721291730 is 5262.2846621019

Scales and comparisons

• 145,721,291,730 seconds is equal to 4,633 years, 25 weeks, 2 days, 35 minutes, 30 seconds.
• To count from 1 to 145,721,291,730 would take you about nine thousand, two hundred sixty-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 145721291730 cubic inches would be around 438.5 feet tall.

Recreational maths with 145721291730

• 145721291730 backwards is 037192127541
• 145721291730 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 145721291730's digits is 42
• More coming soon!