7128563442

Names of 7128563442

• Cardinal: 7128563442 can be written as Seven billion, one hundred twenty-eight million, five hundred sixty-three thousand, four hundred forty-two.

Scientific notation

• Scientific notation: 7.128563442 × 10⁹

Factors of 7128563442

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 409

Divisors of 7128563442

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 3 6 7 11 13 14 21 22 26 33 39 42 66 71 73 77 78 91 142 143 146 154 182 213 219 229 231 273 286 426 429 438 458 462 497 511 546 687 781 803 858 923 949 994 1001 1022 1374 1491 1533 1562 1603 1606 1846 1898 2002 2343 2409 2519 2769 2847 2977 2982 3003 3066 3206 4686 4809 4818 5038 5183 5467 5538 5621 5694 5954 6006 6461 6643 7557 8931 9618 10153 10366 10439 10934 11242 12922 13286 15114 15549 16259 16401 16717 16863 17633 17862 19383 19929 20306 20839 20878 30459 31098 31317 32518 32747 32802 33434 33726 35266 36281 38766 39858 41678 48777 50151 52899 57013 60918 62517 62634 65494 67379 71071 72562 73073 97554 98241 100302 105798 108843 113813 114026 117019 125034 134758 142142 146146 171039 178849 183887 196482 202137 211367 213213 217321 217686 219219 227626 229229 234038 341439 342078 351057 357698 367774 399091 404274 422734 426426 434642 438438 458458 471653 536547 551661 634101 651963 682878 687687 702114 741169 798182 943306 1073094 1103322 1186907 1197273 1251943 1268202 1287209 1303926 1375374 1414959 1479569 1482338 1521247 2223507 2325037 2373814 2390531 2394546 2503886 2574418 2829918 2959138 3042494 3560721 3755829 3861627 4438707 4447014 4563741 4650074 4781062 5188183 6975111 7121442 7171593 7511658 7723254 8308349 8877414 9127482 10376366 13055977 13950222 14343186 15429791 15564549 16275259 16616698 16733717 24925047 26111954 30859582 31129098 32550518 33467434 39167931 46289373 48825777 49850094 50201151 78335862 91391839 92578746 97651554 100402302 108008537 169727701 182783678 216017074 274175517 324025611 339455402 509183103 548351034 648051222 1018366206 1188093907 2376187814 3564281721 7128563442
• Sum of all divisors σ(n): 19763896320
• Sum of proper divisors (its aliquot sum) s(n): 12635332878
• 7128563442 is an abundant number, because the sum of its proper divisors (12635332878) is greater than itself. Its abundance is 5506769436

Bases of 7128563442

• Binary: 110101000111001010011111011110010₂
• Hexadecimal: 0x1A8E53EF2
• Base-36: 39W5UR6

Squares and roots of 7128563442

• 7128563442 squared (7128563442²) is 50816416746618887364
• 7128563442 cubed (7128563442³) is 362248050673383977569726146888
• The square root of 7128563442 is 84430.8204508283
• The cube root of 7128563442 is 1924.5713054033

Scales and comparisons

• 7,128,563,442 seconds is equal to 226 years, 34 weeks, 4 days, 12 hours, 30 minutes, 42 seconds.
• To count from 1 to 7,128,563,442 would take you about four hundred fifty-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 7128563442 cubic inches would be around 160.4 feet tall.

Recreational maths with 7128563442

• 7128563442 backwards is 2443658217
• 7128563442 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 7128563442's digits is 42
• More coming soon!