1229128992

Names of 1229128992

• Cardinal: 1229128992 can be written as One billion, two hundred twenty-nine million, one hundred twenty-eight thousand, nine hundred ninety-two.

Scientific notation

• Scientific notation: 1.229128992 × 10⁹

Factors of 1229128992

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 218

Divisors of 1229128992

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 13 14 16 18 21 24 26 27 28 32 36 39 42 48 52 54 56 63 72 78 81 84 91 96 104 108 112 117 126 144 156 162 168 182 189 193 208 216 224 234 243 252 273 288 312 324 336 351 364 378 386 416 432 468 486 504 546 567 579 624 648 672 702 728 729 756 772 819 864 936 972 1008 1053 1092 1134 1158 1248 1296 1351 1404 1456 1458 1512 1544 1638 1701 1737 1872 1944 2016 2106 2184 2187 2268 2316 2457 2509 2592 2702 2808 2912 2916 3024 3088 3159 3276 3402 3474 3744 3888 4053 4212 4368 4374 4536 4632 4914 5018 5103 5211 5404 5616 5832 6048 6176 6318 6552 6804 6948 7371 7527 7776 8106 8424 8736 8748 9072 9264 9477 9828 10036 10206 10422 10808 11232 11664 12159 12636 13104 13608 13896 14742 15054 15309 15633 16212 16848 17496 17563 18144 18528 18954 19656 20072 20412 20844 21616 22113 22581 23328 24318 25272 26208 27216 27792 28431 29484 30108 30618 31266 32424 33696 34992 35126 36477 37908 39312 40144 40824 41688 43232 44226 45162 46899 48636 50544 52689 54432 55584 56862 58968 60216 61236 62532 64848 66339 67743 69984 70252 72954 75816 78624 80288 81648 83376 88452 90324 93798 97272 101088 105378 109431 113724 117936 120432 122472 125064 129696 132678 135486 140504 140697 145908 151632 158067 163296 166752 176904 180648 187596 194544 199017 203229 210756 218862 227448 235872 240864 244944 250128 265356 270972 281008 281394 291816 303264 316134 328293 353808 361296 375192 389088 398034 406458 421512 422091 437724 454896 474201 489888 500256 530712 541944 562016 562788 583632 609687 632268 656586 707616 722592 750384 796068 812916 843024 844182 875448 909792 948402 984879 1061424 1083888 1125576 1167264 1219374 1264536 1313172 1422603 1500768 1592136 1625832 1686048 1688364 1750896 1829061 1896804 1969758 2122848 2167776 2251152 2438748 2529072 2626344 2845206 2954637 3184272 3251664 3376728 3501792 3658122 3793608 3939516 4267809 4502304 4877496 5058144 5252688 5487183 5690412 5909274 6368544 6503328 6753456 7316244 7587216 7879032 8535618 9754992 10505376 10974366 11380824 11818548 12803427 13506912 14632488 15174432 15758064 17071236 19509984 21948732 22761648 23637096 25606854 29264976 31516128 34142472 38410281 43897464 45523296 47274192 51213708 58529952 68284944 76820562 87794928 94548384 102427416 136569888 153641124 175589856 204854832 307282248 409709664 614564496 1229128992
• Sum of all divisors σ(n): 4489873920
• Sum of proper divisors (its aliquot sum) s(n): 3260744928
• 1229128992 is an abundant number, because the sum of its proper divisors (3260744928) is greater than itself. Its abundance is 2031615936

Bases of 1229128992

• Binary: 1001001010000110000010100100000₂
• Hexadecimal: 0x49430520
• Base-36: KBSI00

Squares and roots of 1229128992

• 1229128992 squared (1229128992²) is 1510758078974936064
• 1229128992 cubed (1229128992³) is 1856916554766319557608767488
• The square root of 1229128992 is 35058.9359792907
• The cube root of 1229128992 is 1071.1883010485

Scales and comparisons

• 1,229,128,992 seconds is equal to 39 years, 4 weeks, 2 days, 43 minutes, 12 seconds.
• To count from 1 to 1,229,128,992 would take you about seventy-eight 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 1229128992 cubic inches would be around 89.3 feet tall.

Recreational maths with 1229128992

• 1229128992 backwards is 2998219221
• The number of decimal digits it has is: 10
• The sum of 1229128992's digits is 45
• More coming soon!