138999889920

Names of 138999889920

• Cardinal: 138999889920 can be written as One hundred thirty-eight billion, nine hundred ninety-nine million, eight hundred eighty-nine thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.3899988992 × 10¹¹

Factors of 138999889920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 22
• Sum of prime factors: 90

Divisors of 138999889920

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 19 20 24 30 32 38 40 48 57 60 61 64 76 80 95 96 114 120 122 128 152 160 183 190 192 228 240 244 256 285 304 305 320 366 380 384 456 480 488 512 570 608 610 640 732 760 768 912 915 960 976 1024 1140 1159 1216 1220 1280 1464 1520 1536 1824 1830 1920 1952 2048 2280 2318 2432 2440 2560 2928 3040 3072 3477 3648 3660 3721 3840 3904 4096 4560 4636 4864 4880 5120 5795 5856 6080 6144 6954 7296 7320 7442 7680 7808 8192 9120 9272 9728 9760 10240 11163 11590 11712 12160 12288 13908 14592 14640 14884 15360 15616 16384 17385 18240 18544 18605 19456 19520 20480 22326 23180 23424 24320 24576 27816 29184 29280 29768 30720 31232 32768 34770 36480 37088 37210 38912 39040 40960 44652 46360 46848 48640 49152 55632 55815 58368 58560 59536 61440 62464 65536 69540 70699 72960 74176 74420 77824 78080 81920 89304 92720 93696 97280 98304 111264 111630 116736 117120 119072 122880 124928 131072 139080 141398 145920 148352 148840 155648 156160 163840 178608 185440 187392 194560 196608 212097 222528 223260 233472 234240 238144 245760 249856 278160 282796 291840 296704 297680 311296 312320 327680 353495 357216 370880 374784 389120 393216 424194 445056 446520 466944 468480 476288 491520 499712 556320 565592 583680 593408 595360 622592 624640 655360 706990 714432 741760 749568 778240 848388 890112 893040 933888 936960 952576 983040 999424 1060485 1112640 1131184 1167360 1186816 1190720 1245184 1249280 1413980 1428864 1483520 1499136 1556480 1696776 1780224 1786080 1867776 1873920 1905152 1966080 1998848 2120970 2225280 2262368 2334720 2373632 2381440 2490368 2498560 2827960 2857728 2967040 2998272 3112960 3393552 3560448 3572160 3735552 3747840 3810304 3997696 4241940 4450560 4524736 4669440 4747264 4762880 4997120 5655920 5715456 5934080 5996544 6225920 6787104 7120896 7144320 7471104 7495680 7620608 7995392 8483880 8901120 9049472 9338880 9494528 9525760 9994240 11311840 11430912 11868160 11993088 12451840 13574208 14241792 14288640 14991360 15241216 16967760 17802240 18098944 18677760 18989056 19051520 19988480 22623680 22861824 23736320 23986176 27148416 28483584 28577280 29982720 30482432 33935520 35604480 36197888 37355520 37978112 38103040 39976960 45247360 45723648 47472640 54296832 56967168 57154560 59965440 60964864 67871040 71208960 72395776 75956224 76206080 90494720 91447296 94945280 108593664 113934336 114309120 119930880 121929728 135742080 142417920 144791552 151912448 152412160 180989440 182894592 189890560 217187328 227868672 228618240 243859456 271484160 284835840 289583104 304824320 361978880 365789184 379781120 434374656 455737344 457236480 487718912 542968320 569671680 579166208 609648640 723957760 731578368 759562240 868749312 914472960 1085936640 1139343360 1158332416 1219297280 1447915520 1463156736 1737498624 1828945920 2171873280 2278686720 2316664832 2438594560 2895831040 3474997248 3657891840 4343746560 4633329664 5791662080 6949994496 7315783680 8687493120 9266659328 11583324160 13899988992 17374986240 23166648320 27799977984 34749972480 46333296640 69499944960 138999889920
• Sum of all divisors σ(n): 476009745120
• Sum of proper divisors (its aliquot sum) s(n): 337009855200
• 138999889920 is an abundant number, because the sum of its proper divisors (337009855200) is greater than itself. Its abundance is 198009965280

Bases of 138999889920

• Binary: 10000001011101000010100000000000000000₂
• Hexadecimal: 0x205D0A0000
• Base-36: 1RUSY1HC

Squares and roots of 138999889920

• 138999889920 squared (138999889920²) is 19320969397772117606400
• 138999889920 cubed (138999889920³) is 2685612619438013040534893887488000
• The square root of 138999889920 is 372826.8900173377
• The cube root of 138999889920 is 5180.1000999325

Scales and comparisons

• 138,999,889,920 seconds is equal to 4,419 years, 39 weeks, 6 days, 32 minutes.
• To count from 1 to 138,999,889,920 would take you about eight thousand, eight hundred thirty-nine 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 138999889920 cubic inches would be around 431.7 feet tall.

Recreational maths with 138999889920

• 138999889920 backwards is 029988999831
• The number of decimal digits it has is: 12
• The sum of 138999889920's digits is 75
• More coming soon!