61381621730

Names of 61381621730

• Cardinal: 61381621730 can be written as Sixty-one billion, three hundred eighty-one million, six hundred twenty-one thousand, seven hundred thirty.

Scientific notation

• Scientific notation: 6.138162173 × 10¹⁰

Factors of 61381621730

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 109

Divisors of 61381621730

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 5 10 11 13 19 22 26 38 55 59 65 95 110 118 121 130 143 190 209 242 247 286 295 418 494 590 605 649 715 767 1045 1121 1210 1235 1298 1430 1534 1573 2090 2242 2299 2470 2717 3146 3245 3481 3835 4598 5434 5605 6490 6962 7139 7670 7865 8437 11210 11495 12331 13585 14278 14573 15730 16874 17405 22990 24662 27170 29146 29887 34810 35695 38291 42185 45253 59774 61655 66139 71390 72865 76582 84370 90506 92807 123310 132278 135641 145730 149435 160303 185614 191455 205379 226265 271282 298870 320606 330695 382910 410758 421201 452530 464035 497783 661390 678205 727529 801515 842402 859807 928070 995566 1026895 1356410 1455058 1603030 1719614 1763333 2053790 2106005 2259169 2488915 2669927 3526666 3637645 3902201 4212010 4299035 4518338 4977830 5339854 5475613 7275290 7804402 8002819 8598070 8816665 9457877 10951226 11295845 13349635 16005638 17633330 18915754 19511005 22591690 24850859 26699270 27378065 29369197 39022010 40014095 42924211 47289385 49701718 50728613 54756130 58738394 80028190 85848422 94578770 101457226 104036647 124254295 146845985 208073294 214621055 248508590 253643065 293691970 323061167 429242110 472166321 507286130 520183235 558014743 646122334 944332642 1040366470 1116029486 1615305835 2360831605 2790073715 3230611670 4721663210 5580147430 6138162173 12276324346 30690810865 61381621730
• Sum of all divisors σ(n): 140043254400
• Sum of proper divisors (its aliquot sum) s(n): 78661632670
• 61381621730 is an abundant number, because the sum of its proper divisors (78661632670) is greater than itself. Its abundance is 17280010940

Bases of 61381621730

• Binary: 111001001010101000010011011111100010₂
• Hexadecimal: 0xE4AA137E2
• Base-36: S7516G2

Squares and roots of 61381621730

• 61381621730 squared (61381621730²) is 3767703486204808192900
• 61381621730 cubed (61381621730³) is 231267750181025809803792671717000
• The square root of 61381621730 is 247753.1467610449
• The cube root of 61381621730 is 3944.6891555781

Scales and comparisons

• 61,381,621,730 seconds is equal to 1,951 years, 38 weeks, 5 days, 10 hours, 28 minutes, 50 seconds.
• To count from 1 to 61,381,621,730 would take you about three thousand, nine hundred three 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 61381621730 cubic inches would be around 328.7 feet tall.

Recreational maths with 61381621730

• 61381621730 backwards is 03712618316
• 61381621730 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 61381621730's digits is 38
• More coming soon!