155440079730

Names of 155440079730

• Cardinal: 155440079730 can be written as One hundred fifty-five billion, four hundred forty million, seventy-nine thousand, seven hundred thirty.

Scientific notation

• Scientific notation: 1.5544007973 × 10¹¹

Factors of 155440079730

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 361

Divisors of 155440079730

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 5 6 9 10 13 15 18 26 27 30 39 45 54 65 67 78 81 90 117 130 134 135 162 195 201 234 243 270 271 335 351 390 402 405 486 542 585 603 670 702 810 813 871 1005 1053 1170 1206 1215 1355 1626 1742 1755 1809 2010 2106 2430 2439 2613 2710 3015 3159 3510 3523 3618 4065 4355 4878 5226 5265 5427 6030 6318 7046 7317 7839 8130 8710 9045 10530 10569 10854 12195 13065 14634 15678 15795 16281 17615 18090 18157 21138 21951 23517 24390 26130 27135 31590 31707 32562 35230 36314 36585 39195 43902 47034 52845 54270 54471 63414 65853 70551 73170 73441 78390 81405 90785 95121 105690 108942 109755 117585 131706 141102 146882 158535 162810 163413 181570 190242 211653 219510 220323 235170 236041 272355 285363 317070 326826 329265 352755 367205 423306 440646 472082 475605 490239 544710 570726 658530 660969 705510 708123 734410 817065 856089 951210 954733 980478 1058265 1101615 1180205 1321938 1416246 1426815 1470717 1634130 1712178 1909466 1982907 2116530 2124369 2203230 2360410 2451195 2853630 2864199 2941434 3304845 3540615 3965814 4248738 4280445 4412151 4773665 4902390 4920547 5728398 5948721 6373107 6609690 7081230 7353585 8560890 8592597 8824302 9547330 9841094 9914535 10621845 11897442 12746214 14320995 14707170 14761641 17185194 17846163 19119321 19829070 21243690 22060755 24602735 25777791 28641990 29523282 29743605 31865535 35692326 38238642 42962985 44121510 44284923 49205470 51555582 57357963 59487210 63731070 63967111 73808205 77333373 85925970 88569846 89230815 95596605 114715926 127934222 128888955 132854769 147616410 154666746 178461630 191193210 191901333 221424615 232000119 257777910 265709538 286789815 319835555 383802666 386666865 398564307 442849230 464000238 573579630 575703999 639671110 664273845 773333730 797128614 959506665 1151407998 1160000595 1195692921 1328547690 1727111997 1919013330 1992821535 2320001190 2391385842 2878519995 3454223994 3985643070 5181335991 5757039990 5978464605 8635559985 10362671982 11956929210 15544007973 17271119970 25906679955 31088015946 51813359910 77720039865 155440079730
• Sum of all divisors σ(n): 459785132352
• Sum of proper divisors (its aliquot sum) s(n): 304345052622
• 155440079730 is an abundant number, because the sum of its proper divisors (304345052622) is greater than itself. Its abundance is 148904972892

Bases of 155440079730

• Binary: 10010000110000111100110110001101110010₂
• Hexadecimal: 0x2430F36372
• Base-36: 1ZEP0D4I

Squares and roots of 155440079730

• 155440079730 squared (155440079730²) is 24161618386468756872900
• 155440079730 cubed (155440079730³) is 3755683888398537521477561476317000
• The square root of 155440079730 is 394258.8993669007
• The cube root of 155440079730 is 5376.7643572737

Scales and comparisons

• 155,440,079,730 seconds is equal to 4,942 years, 26 weeks, 4 days, 23 hours, 55 minutes, 30 seconds.
• To count from 1 to 155,440,079,730 would take you about nine thousand, eight hundred eighty-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 155440079730 cubic inches would be around 448.1 feet tall.

Recreational maths with 155440079730

• 155440079730 backwards is 037970044551
• 155440079730 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 155440079730's digits is 45
• More coming soon!