638389913112

Names of 638389913112

• Cardinal: 638389913112 can be written as Six hundred thirty-eight billion, three hundred eighty-nine million, nine hundred thirteen thousand, one hundred twelve.

Scientific notation

• Scientific notation: 6.38389913112 × 10¹¹

Factors of 638389913112

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 12318

Divisors of 638389913112

• Number of divisors d(n): 224
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 18 21 24 27 28 36 42 54 56 63 72 81 84 108 126 162 168 189 216 243 252 324 378 486 504 567 648 729 756 972 1134 1439 1458 1512 1701 1944 2268 2878 2916 3402 4317 4536 5103 5756 5832 6804 8634 10073 10206 10867 11512 12951 13608 17268 20146 20412 21734 25902 30219 32601 34536 38853 40292 40824 43468 51804 60438 65202 76069 77706 80584 86936 90657 97803 103608 116559 120876 130404 152138 155412 181314 195606 228207 233118 241752 260808 271971 293409 304276 310824 349677 362628 391212 456414 466236 543942 586818 608552 684621 699354 725256 782424 815913 880227 912828 932472 1049031 1087884 1173636 1369242 1398708 1631826 1760454 1825656 2053863 2098062 2175768 2347272 2447739 2640681 2738484 2797416 3263652 3520908 4107726 4196124 4895478 5281362 5476968 6161589 6527304 7041816 7343217 7922043 8215452 8392248 9790956 10562724 12323178 14686434 15637613 15844086 16430904 18484767 19581912 21125448 24646356 29372868 31275226 31688172 36969534 46912839 49292712 55454301 58745736 62550452 63376344 73939068 93825678 109463291 110908602 125100904 140738517 147878136 187651356 218926582 221817204 281477034 328389873 375302712 422215551 437853164 443634408 562954068 656779746 844431102 875706328 985169619 1125908136 1266646653 1313559492 1688862204 1970339238 2533293306 2627118984 2955508857 3377724408 3799939959 3940678476 5066586612 5911017714 7599879918 7881356952 8866526571 10133173224 11399819877 11822035428 15199759836 17733053142 22799639754 23644070856 26599579713 30399519672 35466106284 45599279508 53199159426 70932212568 79798739139 91198559016 106398318852 159597478278 212796637704 319194956556 638389913112
• Sum of all divisors σ(n): 2052643507200
• Sum of proper divisors (its aliquot sum) s(n): 1414253594088
• 638389913112 is an abundant number, because the sum of its proper divisors (1414253594088) is greater than itself. Its abundance is 775863680976

Bases of 638389913112

• Binary: 1001010010100011000000010000011000011000₂
• Hexadecimal: 0x94A3010618
• Base-36: 859SVDI0

Squares and roots of 638389913112

• 638389913112 squared (638389913112²) is 407541681163146909524544
• 638389913112 cubed (638389913112³) is 260170498427259762667864969391420928
• The square root of 638389913112 is 798993.0619924055
• The cube root of 638389913112 is 8610.5059683965

Scales and comparisons

• 638,389,913,112 seconds is equal to 20,298 years, 42 weeks, 6 days, 3 hours, 25 minutes, 12 seconds.
• To count from 1 to 638,389,913,112 would take you about forty thousand, five hundred ninety-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 638389913112 cubic inches would be around 717.5 feet tall.

Recreational maths with 638389913112

• 638389913112 backwards is 211319983836
• 638389913112 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 638389913112's digits is 54
• More coming soon!