138394267648

Names of 138394267648

• Cardinal: 138394267648 can be written as One hundred thirty-eight billion, three hundred ninety-four million, two hundred sixty-seven thousand, six hundred forty-eight.

Scientific notation

• Scientific notation: 1.38394267648 × 10¹¹

Factors of 138394267648

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 19
• Sum of prime factors: 22

Divisors of 138394267648

• Number of divisors d(n): 182
• Complete list of divisors:
  1 2 4 7 8 13 14 16 26 28 32 52 56 64 91 104 112 128 169 182 208 224 256 338 364 416 448 512 676 728 832 896 1024 1183 1352 1456 1664 1792 2048 2197 2366 2704 2912 3328 3584 4096 4394 4732 5408 5824 6656 7168 8788 9464 10816 11648 13312 14336 15379 17576 18928 21632 23296 26624 28561 28672 30758 35152 37856 43264 46592 53248 57122 61516 70304 75712 86528 93184 114244 123032 140608 151424 173056 186368 199927 228488 246064 281216 302848 346112 371293 372736 399854 456976 492128 562432 605696 692224 742586 799708 913952 984256 1124864 1211392 1485172 1599416 1827904 1968512 2249728 2422784 2599051 2970344 3198832 3655808 3937024 4499456 4826809 4845568 5198102 5940688 6397664 7311616 7874048 8998912 9653618 10396204 11881376 12795328 14623232 15748096 19307236 20792408 23762752 25590656 29246464 31496192 33787663 38614472 41584816 47525504 51181312 58492928 62992384 67575326 77228944 83169632 95051008 102362624 116985856 135150652 154457888 166339264 190102016 204725248 270301304 308915776 332678528 380204032 409450496 540602608 617831552 665357056 760408064 818900992 1081205216 1235663104 1330714112 1520816128 2162410432 2471326208 2661428224 4324820864 4942652416 5322856448 8649641728 9885304832 10645712896 17299283456 19770609664 34598566912 69197133824 138394267648
• Sum of all divisors σ(n): 342648729704
• Sum of proper divisors (its aliquot sum) s(n): 204254462056
• 138394267648 is an abundant number, because the sum of its proper divisors (204254462056) is greater than itself. Its abundance is 65860194408

Bases of 138394267648

• Binary: 10000000111000111100001111000000000000₂
• Hexadecimal: 0x2038F0F000
• Base-36: 1RKSDGCG

Squares and roots of 138394267648

• 138394267648 squared (138394267648²) is 19152973317826259451904
• 138394267648 cubed (138394267648³) is 2650661715602249920149491959201792
• The square root of 138394267648 is 372013.8003461699
• The cube root of 138394267648 is 5172.5659182165
• Being both a perfect square and a perfect cube, 138394267648 is also a perfect sixth number.

Scales and comparisons

• 138,394,267,648 seconds is equal to 4,400 years, 26 weeks, 3 days, 12 hours, 7 minutes, 28 seconds.
• To count from 1 to 138,394,267,648 would take you about eight thousand, eight hundred one 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 138394267648 cubic inches would be around 431 feet tall.

Recreational maths with 138394267648

• 138394267648 backwards is 846762493831
• The number of decimal digits it has is: 12
• The sum of 138394267648's digits is 61
• More coming soon!