165445136640

Names of 165445136640

• Cardinal: 165445136640 can be written as One hundred sixty-five billion, four hundred forty-five million, one hundred thirty-six thousand, six hundred forty.

Scientific notation

• Scientific notation: 1.6544513664 × 10¹¹

Factors of 165445136640

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 293110

Divisors of 165445136640

• Number of divisors d(n): 324
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 28 30 32 35 36 40 42 45 48 49 56 60 63 64 70 72 80 84 90 96 98 105 112 120 126 128 140 144 147 160 168 180 192 196 210 224 240 245 252 256 280 288 294 315 320 336 360 384 392 420 441 448 480 490 504 560 576 588 630 640 672 720 735 768 784 840 882 896 960 980 1008 1120 1152 1176 1260 1280 1344 1440 1470 1568 1680 1764 1792 1920 1960 2016 2205 2240 2304 2352 2520 2688 2880 2940 3136 3360 3528 3840 3920 4032 4410 4480 4704 5040 5376 5760 5880 6272 6720 7056 7840 8064 8820 8960 9408 10080 11520 11760 12544 13440 14112 15680 16128 17640 18816 20160 23520 26880 28224 31360 35280 37632 40320 47040 56448 62720 70560 80640 94080 112896 141120 188160 282240 293093 564480 586186 879279 1172372 1465465 1758558 2051651 2344744 2637837 2930930 3517116 4103302 4396395 4689488 5275674 5861860 6154953 7034232 8206604 8792790 9378976 10258255 10551348 11723720 12309906 13189185 14068464 14361557 16413208 17585580 18464859 18757952 20516510 21102696 23447440 24619812 26378370 28136928 28723114 30774765 32826416 35171160 36929718 37515904 41033020 42205392 43084671 46894880 49239624 52756740 56273856 57446228 61549530 65652832 70342320 71807785 73859436 75031808 82066040 84410784 86169342 92324295 93789760 98479248 105513480 112547712 114892456 123099060 129254013 131305664 140684640 143615570 147718872 164132080 168821568 172338684 184648590 187579520 196958496 211026960 215423355 225095424 229784912 246198120 258508026 262611328 281369280 287231140 295437744 328264160 337643136 344677368 369297180 375159040 393916992 422053920 430846710 459569824 492396240 517016052 525222656 562738560 574462280 590875488 646270065 656528320 675286272 689354736 738594360 787833984 844107840 861693420 919139648 984792480 1034032104 1125477120 1148924560 1181750976 1292540130 1313056640 1378709472 1477188720 1575667968 1688215680 1723386840 1838279296 1969584960 2068064208 2297849120 2363501952 2585080260 2626113280 2757418944 2954377440 3376431360 3446773680 3676558592 3939169920 4136128416 4595698240 4727003904 5170160520 5514837888 5908754880 6893547360 7878339840 8272256832 9191396480 10340321040 11029675776 11817509760 13787094720 16544513664 18382792960 20680642080 23635019520 27574189440 33089027328 41361284160 55148378880 82722568320 165445136640
• Sum of all divisors σ(n): 665882017164
• Sum of proper divisors (its aliquot sum) s(n): 500436880524
• 165445136640 is an abundant number, because the sum of its proper divisors (500436880524) is greater than itself. Its abundance is 334991743884

Bases of 165445136640

• Binary: 10011010000101010011000111000100000000₂
• Hexadecimal: 0x26854C7100
• Base-36: 2405RGG0

Squares and roots of 165445136640

• 165445136640 squared (165445136640²) is 27372093237828270489600
• 165445136640 cubed (165445136640³) is 4528579705855318228006751698944000
• The square root of 165445136640 is 406749.4765085753
• The cube root of 165445136640 is 5489.7344233361

Scales and comparisons

• 165,445,136,640 seconds is equal to 5,260 years, 33 weeks, 3 days, 6 hours, 24 minutes.
• To count from 1 to 165,445,136,640 would take you about ten thousand, five hundred twenty-one 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 165445136640 cubic inches would be around 457.5 feet tall.

Recreational maths with 165445136640

• 165445136640 backwards is 046631544561
• 165445136640 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 165445136640's digits is 45
• More coming soon!