1221251148

Names of 1221251148

• Cardinal: 1221251148 can be written as One billion, two hundred twenty-one million, two hundred fifty-one thousand, one hundred forty-eight.

Scientific notation

• Scientific notation: 1.221251148 × 10⁹

Factors of 1221251148

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 741

Divisors of 1221251148

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 6 9 12 13 18 23 26 27 36 39 46 52 54 59 69 78 92 108 117 118 138 156 177 207 234 236 276 299 351 354 414 468 531 598 621 641 702 708 767 828 897 1062 1196 1242 1282 1357 1404 1534 1593 1794 1923 2124 2301 2484 2564 2691 2714 3068 3186 3588 3846 4071 4602 5382 5428 5769 6372 6903 7692 8073 8142 8333 9204 10764 11538 12213 13806 14743 16146 16284 16666 17307 17641 20709 23076 24426 24999 27612 29486 32292 33332 34614 35282 36639 37819 41418 44229 48852 49998 52923 58972 69228 70564 73278 74997 75638 82836 88458 99996 105846 113457 132687 146556 149994 151276 158769 176916 191659 211692 224991 226914 265374 299988 317538 340371 383318 398061 449982 453828 476307 491647 530748 574977 635076 680742 766636 796122 869837 899964 952614 983294 1021113 1149954 1361484 1474941 1592244 1724931 1739674 1905228 1966588 2042226 2299908 2609511 2949882 3449862 3479348 4084452 4424823 5174793 5219022 5899764 6899724 7828533 8849646 10349586 10438044 11307881 13274469 15657066 17699292 20699172 22615762 23485599 26548938 31314132 33923643 45231524 46971198 53097876 67847286 93942396 101770929 135694572 203541858 305312787 407083716 610625574 1221251148
• Sum of all divisors σ(n): 3623961600
• Sum of proper divisors (its aliquot sum) s(n): 2402710452
• 1221251148 is an abundant number, because the sum of its proper divisors (2402710452) is greater than itself. Its abundance is 1181459304

Bases of 1221251148

• Binary: 1001000110010101101000001001100₂
• Hexadecimal: 0x48CAD04C
• Base-36: K73NF0

Squares and roots of 1221251148

• 1221251148 squared (1221251148²) is 1491454366491317904
• 1221251148 cubed (1221251148³) is 1821440357267134722292953792
• The square root of 1221251148 is 34946.4039351691
• The cube root of 1221251148 is 1068.8948755281

Scales and comparisons

• 1,221,251,148 seconds is equal to 38 years, 43 weeks, 1 day, 20 hours, 25 minutes, 48 seconds.
• To count from 1 to 1,221,251,148 would take you about seventy-seven 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 1221251148 cubic inches would be around 89.1 feet tall.

Recreational maths with 1221251148

• 1221251148 backwards is 8411521221
• 1221251148 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 1221251148's digits is 27
• More coming soon!