129907008

Names of 129907008

• Cardinal: 129907008 can be written as One hundred twenty-nine million, nine hundred seven thousand and eight.

Scientific notation

• Scientific notation: 1.29907008 × 10⁸

Factors of 129907008

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 153

Divisors of 129907008

• Number of divisors d(n): 336
• Complete list of divisors:
  1 2 3 4 6 7 8 9 11 12 14 16 18 21 22 24 28 29 32 33 36 42 44 48 56 58 63 64 66 72 77 84 87 88 96 99 101 112 116 126 132 144 154 168 174 176 192 198 202 203 224 231 232 252 261 264 288 303 308 319 336 348 352 396 404 406 448 462 464 504 522 528 576 606 609 616 638 672 693 696 704 707 792 808 812 909 924 928 957 1008 1044 1056 1111 1212 1218 1232 1276 1344 1386 1392 1414 1584 1616 1624 1818 1827 1848 1856 1914 2016 2088 2112 2121 2222 2233 2424 2436 2464 2552 2772 2784 2828 2871 2929 3168 3232 3248 3333 3636 3654 3696 3828 4032 4176 4242 4444 4466 4848 4872 4928 5104 5544 5568 5656 5742 5858 6336 6363 6464 6496 6666 6699 7272 7308 7392 7656 7777 8352 8484 8787 8888 8932 9696 9744 9999 10208 11088 11312 11484 11716 12726 12992 13332 13398 14544 14616 14784 15312 15554 16704 16968 17574 17776 17864 19392 19488 19998 20097 20416 20503 22176 22624 22968 23331 23432 25452 26361 26664 26796 29088 29232 30624 31108 32219 33936 35148 35552 35728 38976 39996 40194 41006 44352 45248 45936 46662 46864 50904 52722 53328 53592 58176 58464 61248 61509 62216 64438 67872 69993 70296 71104 71456 79992 80388 82012 91872 93324 93728 96657 101808 105444 106656 107184 116928 123018 124432 128876 135744 139986 140592 142912 159984 160776 164024 183744 184527 186648 187456 193314 203616 210888 213312 214368 225533 246036 248864 257752 279972 281184 289971 319968 321552 328048 369054 373296 386628 407232 421776 428736 451066 492072 497728 515504 559944 562368 579942 639936 643104 656096 676599 738108 746592 773256 843552 902132 984144 1031008 1119888 1159884 1286208 1312192 1353198 1476216 1493184 1546512 1687104 1804264 1968288 2029797 2062016 2239776 2319768 2706396 2952432 3093024 3608528 3936576 4059594 4479552 4639536 5412792 5904864 6186048 7217056 8119188 9279072 10825584 11809728 14434112 16238376 18558144 21651168 32476752 43302336 64953504 129907008
• Sum of all divisors σ(n): 484997760
• Sum of proper divisors (its aliquot sum) s(n): 355090752
• 129907008 is an abundant number, because the sum of its proper divisors (355090752) is greater than itself. Its abundance is 225183744

Bases of 129907008

• Binary: 111101111100011100101000000₂
• Hexadecimal: 0x7BE3940
• Base-36: 25CCW0

Squares and roots of 129907008

• 129907008 squared (129907008²) is 16875830727512064
• 129907008 cubed (129907008³) is 2192288677325555518144512
• The square root of 129907008 is 11397.6755524975
• The cube root of 129907008 is 506.4588837137

Scales and comparisons

• 129,907,008 seconds is equal to 4 years, 6 weeks, 5 days, 13 hours, 16 minutes, 48 seconds.
• To count from 1 to 129,907,008 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 129907008 cubic inches would be around 42.2 feet tall.

Recreational maths with 129907008

• 129907008 backwards is 800709921
• 129907008 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 129907008's digits is 36
• More coming soon!