138306168

Names of 138306168

• Cardinal: 138306168 can be written as One hundred thirty-eight million, three hundred six thousand, one hundred sixty-eight.

Scientific notation

• Scientific notation: 1.38306168 × 10⁸

Factors of 138306168

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 156

Divisors of 138306168

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 6 7 8 9 11 12 13 14 18 19 21 22 24 26 28 33 36 38 39 42 44 52 56 57 63 66 72 76 77 78 84 88 91 99 101 104 114 117 126 132 133 143 152 154 156 168 171 182 198 202 209 228 231 234 247 252 264 266 273 286 303 308 312 342 364 396 399 404 418 429 456 462 468 494 504 532 546 572 606 616 627 684 693 707 728 741 792 798 808 819 836 858 909 924 936 988 1001 1064 1092 1111 1144 1197 1212 1254 1287 1313 1368 1386 1414 1463 1482 1596 1638 1672 1716 1729 1818 1848 1881 1919 1976 2002 2121 2184 2222 2223 2394 2424 2508 2574 2626 2717 2772 2828 2926 2964 3003 3192 3276 3333 3432 3458 3636 3762 3838 3939 4004 4242 4389 4444 4446 4788 5016 5148 5187 5252 5434 5544 5656 5757 5852 5928 6006 6363 6552 6666 6916 7272 7524 7676 7777 7878 8008 8151 8484 8778 8888 8892 9009 9191 9576 9999 10296 10374 10504 10868 11514 11704 11817 12012 12726 13167 13332 13433 13832 14443 15048 15352 15554 15561 15756 16302 16968 17271 17556 17784 18018 18382 19019 19998 20748 21109 21736 23028 23331 23634 24024 24453 24947 25452 26334 26664 26866 27573 28886 31108 31122 31512 32604 34542 35112 36036 36764 38038 39996 40299 41496 42218 43329 46056 46662 47268 48906 49894 50904 52668 53732 55146 57057 57772 62216 62244 63327 65208 69084 69993 72072 73528 74841 76076 79992 80598 82719 84436 86658 93324 94536 97812 99788 101101 105336 107464 110292 114114 115544 120897 124488 126654 129987 138168 139986 147763 149682 152152 161196 165438 168872 171171 173316 174629 186648 189981 195624 199576 202202 220584 224523 228228 241794 253308 259974 274417 279972 295526 299364 303303 322392 330876 342342 346632 349258 379962 404404 443289 449046 456456 483588 506616 519948 523887 548834 559944 591052 598728 606606 661752 684684 698516 759924 808808 823251 886578 898092 909909 967176 1039896 1047774 1097668 1182104 1213212 1329867 1369368 1397032 1519848 1571661 1646502 1773156 1796184 1819818 1920919 2095548 2195336 2426424 2469753 2659734 3143322 3293004 3546312 3639636 3841838 4191096 4939506 5319468 5762757 6286644 6586008 7279272 7683676 9879012 10638936 11525514 12573288 15367352 17288271 19758024 23051028 34576542 46102056 69153084 138306168
• Sum of all divisors σ(n): 534643200
• Sum of proper divisors (its aliquot sum) s(n): 396337032
• 138306168 is an abundant number, because the sum of its proper divisors (396337032) is greater than itself. Its abundance is 258030864

Bases of 138306168

• Binary: 1000001111100110001001111000₂
• Hexadecimal: 0x83E6278
• Base-36: 2ACDQ0

Squares and roots of 138306168

• 138306168 squared (138306168²) is 19128596106844224
• 138306168 cubed (138306168³) is 2645602826757343194373632
• The square root of 138306168 is 11760.3642800723
• The cube root of 138306168 is 517.1468093439

Scales and comparisons

• 138,306,168 seconds is equal to 4 years, 20 weeks, 4 days, 18 hours, 22 minutes, 48 seconds.
• To count from 1 to 138,306,168 would take you about 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 138306168 cubic inches would be around 43.1 feet tall.

Recreational maths with 138306168

• 138306168 backwards is 861603831
• 138306168 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 138306168's digits is 36
• More coming soon!