129131445872

Names of 129131445872

• Cardinal: 129131445872 can be written as One hundred twenty-nine billion, one hundred thirty-one million, four hundred forty-five thousand, eight hundred seventy-two.

Scientific notation

• Scientific notation: 1.29131445872 × 10¹¹

Factors of 129131445872

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 357

Divisors of 129131445872

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 4 8 11 13 16 19 22 26 31 38 44 52 62 76 88 104 121 124 143 152 176 208 209 242 247 248 281 286 304 341 403 418 484 494 496 562 572 589 682 806 836 961 968 988 1124 1144 1178 1364 1573 1612 1672 1922 1936 1976 2248 2288 2299 2356 2717 2728 3091 3146 3224 3344 3653 3751 3844 3952 4433 4496 4598 4712 5339 5434 5456 6182 6292 6448 6479 7306 7502 7657 7688 8711 8866 9196 9424 10571 10678 10868 12364 12493 12584 12958 14612 15004 15314 15376 17422 17732 18259 18392 21142 21356 21736 24728 24986 25168 25916 29224 29887 30008 30628 34001 34844 35464 36518 36784 40183 42284 42712 43472 48763 49456 49972 51832 58448 58729 59774 60016 61256 68002 69407 69688 70928 71269 73036 80366 84227 84568 85424 95821 97526 99944 103664 113243 116281 117458 119548 122512 136004 137423 138814 139376 142538 146072 160732 165509 168454 169136 191642 195052 199888 200849 226486 232562 234916 237367 239096 270041 272008 274846 277628 285076 292144 321464 331018 336908 383284 390104 401698 442013 452972 465124 469832 474734 478192 540082 544016 549692 555256 570152 642928 646019 662036 673816 763477 766568 780208 803396 884026 905944 926497 930248 939664 949468 1054031 1080164 1099384 1110512 1140304 1245673 1292038 1324072 1347632 1511653 1526954 1533136 1606792 1768052 1811888 1820599 1852994 1860496 1898936 2108062 2151617 2160328 2198768 2209339 2491346 2584076 2611037 2648144 2970451 3023306 3053908 3213584 3510533 3536104 3641198 3705988 3797872 4216124 4303234 4320656 4418678 4982692 5130779 5168152 5222074 5940902 6046612 6107816 7021066 7072208 7282396 7411976 8398247 8432248 8606468 8837356 9965384 10261558 10336304 10444148 11881804 12093224 12215632 13702403 14042132 14564792 14823952 16796494 16864496 17212936 17674712 19930768 20026589 20523116 20888296 23667787 23763608 24186448 27404806 28084264 28721407 29129584 32674961 33592988 34425872 35349424 38615863 40053178 41046232 41776592 47335574 47527216 54809612 56168528 56438569 57442814 65349922 66700127 67185976 77231726 80106356 82092464 94671148 109619224 112877138 114885628 130699844 133400254 134371952 154463452 160212712 189342296 219238448 225754276 229771256 260345657 261399688 266800508 308926904 320425424 378684592 424774493 451508552 459542512 520691314 522799376 533601016 617853808 620824259 733701397 849548986 903017104 1041382628 1067202032 1241648518 1467402794 1699097972 2082765256 2483297036 2934805588 3398195944 4165530512 4966594072 5869611176 6796391888 8070715367 9933188144 11739222352 16141430734 32282861468 64565722936 129131445872
• Sum of all divisors σ(n): 323273215440
• Sum of proper divisors (its aliquot sum) s(n): 194141769568
• 129131445872 is an abundant number, because the sum of its proper divisors (194141769568) is greater than itself. Its abundance is 65010323696

Bases of 129131445872

• Binary: 1111000010000110101010111111001110000₂
• Hexadecimal: 0x1E10D57E70
• Base-36: 1NBLJ1BK

Squares and roots of 129131445872

• 129131445872 squared (129131445872²) is 16674930312993265840384
• 129131445872 cubed (129131445872³) is 2153257861131661926168053087694848
• The square root of 129131445872 is 359348.6411161173
• The cube root of 129131445872 is 5054.4899566951

Scales and comparisons

• 129,131,445,872 seconds is equal to 4,105 years, 50 weeks, 6 days, 22 hours, 4 minutes, 32 seconds.
• To count from 1 to 129,131,445,872 would take you about eight thousand, two hundred eleven 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 129131445872 cubic inches would be around 421.2 feet tall.

Recreational maths with 129131445872

• 129131445872 backwards is 278544131921
• The number of decimal digits it has is: 12
• The sum of 129131445872's digits is 47
• More coming soon!