129879426768

Names of 129879426768

• Cardinal: 129879426768 can be written as One hundred twenty-nine billion, eight hundred seventy-nine million, four hundred twenty-six thousand, seven hundred sixty-eight.

Scientific notation

• Scientific notation: 1.29879426768 × 10¹¹

Factors of 129879426768

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 30997

Divisors of 129879426768

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 4 6 7 8 12 13 14 16 21 24 26 28 31 39 42 48 52 56 62 78 84 91 93 104 112 124 156 168 182 186 208 217 248 273 312 336 364 372 403 434 496 546 624 651 728 744 806 868 961 1092 1209 1302 1456 1488 1612 1736 1922 2184 2418 2604 2821 2883 3224 3472 3844 4368 4836 5208 5642 5766 6448 6727 7688 8463 9672 10416 11284 11532 12493 13454 15376 16926 19344 20181 22568 23064 24986 26908 30941 33852 37479 40362 45136 46128 49972 53816 61882 67704 74958 80724 87451 92823 99944 107632 123764 135408 149916 161448 174902 185646 199888 216587 247528 262353 299832 322896 349804 371292 402233 433174 495056 524706 599664 649761 699608 742584 804466 866348 959171 1049412 1206699 1299522 1399216 1485168 1608932 1732696 1918342 2098824 2413398 2599044 2815631 2877513 3217864 3465392 3836684 4197648 4826796 5198088 5631262 5755026 6435728 6714197 7673368 8446893 9653592 10396176 11262524 11510052 12469223 13428394 15346736 16893786 19307184 20142591 22525048 23020104 24938446 26856788 29734301 33787572 37407669 40285182 45050096 46040208 49876892 53713576 59468602 67575144 74815338 80570364 87284561 89202903 99753784 107427152 118937204 135150288 149630676 161140728 174569122 178405806 199507568 208140107 237874408 261853683 299261352 322281456 349138244 356811612 386545913 416280214 475748816 523707366 598522704 624420321 698276488 713623224 773091826 832560428 1047414732 1159637739 1248840642 1396552976 1427246448 1546183652 1665120856 2094829464 2319275478 2497681284 2705821391 3092367304 3330241712 4189658928 4638550956 4995362568 5411642782 6184734608 8117464173 9277101912 9990725136 10823285564 16234928346 18554203824 21646571128 32469856692 43293142256 64939713384 129879426768
• Sum of all divisors σ(n): 426714438528
• Sum of proper divisors (its aliquot sum) s(n): 296835011760
• 129879426768 is an abundant number, because the sum of its proper divisors (296835011760) is greater than itself. Its abundance is 166955584992

Bases of 129879426768

• Binary: 1111000111101011010101100011011010000₂
• Hexadecimal: 0x1E3D6AC6D0
• Base-36: 1NNYUV2O

Squares and roots of 129879426768

• 129879426768 squared (129879426768²) is 16868665497584274925824
• 129879426768 cubed (129879426768³) is 2190892605167385116136936840056832
• The square root of 129879426768 is 360387.8837696961
• The cube root of 129879426768 is 5064.2303820427

Scales and comparisons

• 129,879,426,768 seconds is equal to 4,129 years, 39 weeks, 5 days, 2 hours, 32 minutes, 48 seconds.
• To count from 1 to 129,879,426,768 would take you about eight thousand, two hundred fifty-nine 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 129879426768 cubic inches would be around 422 feet tall.

Recreational maths with 129879426768

• 129879426768 backwards is 867624978921
• The number of decimal digits it has is: 12
• The sum of 129879426768's digits is 69
• More coming soon!