129620643984

Names of 129620643984

• Cardinal: 129620643984 can be written as One hundred twenty-nine billion, six hundred twenty million, six hundred forty-three thousand, nine hundred eighty-four.

Scientific notation

• Scientific notation: 1.29620643984 × 10¹¹

Factors of 129620643984

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 198

Divisors of 129620643984

• Number of divisors d(n): 420
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 16 18 24 26 27 36 39 48 52 53 54 72 78 81 104 106 108 117 127 144 156 159 162 208 212 216 234 243 254 312 318 324 351 381 424 432 468 477 486 508 624 636 648 689 702 729 762 848 936 954 972 1016 1053 1143 1272 1296 1378 1404 1431 1458 1524 1651 1872 1908 1944 2032 2067 2106 2286 2544 2756 2808 2862 2916 3048 3159 3302 3429 3816 3888 4134 4212 4293 4572 4953 5512 5616 5724 5832 6096 6201 6318 6604 6731 6858 7632 8268 8424 8586 9144 9477 9906 10287 11024 11448 11664 12402 12636 12879 13208 13462 13716 14859 16129 16536 16848 17172 18288 18603 18954 19812 20193 20574 22896 24804 25272 25758 26416 26924 27432 29718 30861 32258 33072 34344 37206 37908 38637 39624 40386 41148 44577 48387 49608 50544 51516 53848 54864 55809 59436 60579 61722 64516 68688 74412 75816 77274 79248 80772 82296 87503 89154 92583 96774 99216 103032 107696 111618 118872 121158 123444 129032 133731 145161 148824 151632 154548 161544 164592 167427 175006 178308 181737 185166 193548 206064 209677 223236 237744 242316 246888 258064 262509 267462 290322 297648 309096 323088 334854 350012 356616 363474 370332 387096 401193 419354 435483 446472 484632 493776 502281 525018 534924 545211 580644 618192 629031 669708 700024 713232 726948 740664 774192 787527 802386 838708 854837 870966 892944 969264 1004562 1050036 1069848 1090422 1161288 1203579 1258062 1306449 1339416 1400048 1453896 1481328 1575054 1604772 1635633 1677416 1709674 1741932 1887093 2009124 2100072 2139696 2180844 2322576 2362581 2407158 2516124 2564511 2612898 2678832 2907792 3150108 3209544 3271266 3354832 3419348 3483864 3774186 3919347 4018248 4200144 4361688 4725162 4814316 4906899 5032248 5129022 5225796 5661279 6300216 6419088 6542532 6838696 6967728 7087743 7548372 7693533 7838694 8036496 8723376 9450324 9628632 9813798 10064496 10258044 10451592 11112881 11322558 11758041 12600432 13085064 13677392 14175486 15096744 15387066 15677388 16983837 18900648 19257264 19627596 20516088 20903184 21263229 22225762 22645116 23080599 23516082 26170128 28350972 30193488 30774132 31354776 33338643 33967674 37801296 39255192 41032176 42526458 44451524 45290232 46161198 47032164 50951511 56701944 61548264 62709552 63789687 66677286 67935348 69241797 78510384 85052916 88903048 90580464 92322396 94064328 100015929 101903022 113403888 123096528 127579374 133354572 135870696 138483594 152854533 170105832 177806096 184644792 188128656 200031858 203806044 207725391 255158748 266709144 271741392 276967188 300047787 305709066 340211664 369289584 400063716 407612088 415450782 510317496 533418288 553934376 600095574 611418132 623176173 800127432 815224176 830901564 900143361 1020634992 1107868752 1200191148 1222836264 1246352346 1600254864 1661803128 1800286722 2400382296 2445672528 2492704692 2700430083 3323606256 3600573444 4800764592 4985409384 5400860166 7201146888 8101290249 9970818768 10801720332 14402293776 16202580498 21603440664 32405160996 43206881328 64810321992 129620643984
• Sum of all divisors σ(n): 416431963836
• Sum of proper divisors (its aliquot sum) s(n): 286811319852
• 129620643984 is an abundant number, because the sum of its proper divisors (286811319852) is greater than itself. Its abundance is 157190675868

Bases of 129620643984

• Binary: 1111000101101111111100001000010010000₂
• Hexadecimal: 0x1E2DFE1090
• Base-36: 1NJOS900

Squares and roots of 129620643984

• 129620643984 squared (129620643984²) is 16801511346826875392256
• 129620643984 cubed (129620643984³) is 2177822720680182763302745326587904
• The square root of 129620643984 is 360028.6710582923
• The cube root of 129620643984 is 5060.8646783235

Scales and comparisons

• 129,620,643,984 seconds is equal to 4,121 years, 27 weeks, 5 days, 22 hours, 26 minutes, 24 seconds.
• To count from 1 to 129,620,643,984 would take you about eight thousand, two hundred forty-three 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 129620643984 cubic inches would be around 421.7 feet tall.

Recreational maths with 129620643984

• 129620643984 backwards is 489346026921
• 129620643984 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 129620643984's digits is 54
• More coming soon!