18914941440

Names of 18914941440

• Cardinal: 18914941440 can be written as Eighteen billion, nine hundred fourteen million, nine hundred forty-one thousand, four hundred forty.

Scientific notation

• Scientific notation: 1.891494144 × 10¹⁰

Factors of 18914941440

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 28348

Divisors of 18914941440

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 29 30 32 36 40 45 48 58 60 64 72 80 87 90 96 116 120 128 144 145 160 174 180 192 232 240 256 261 288 290 320 348 360 384 435 464 480 512 522 576 580 640 696 720 768 870 928 960 1044 1152 1160 1280 1305 1392 1440 1536 1740 1856 1920 2088 2304 2320 2560 2610 2784 2880 3480 3712 3840 4176 4608 4640 5220 5568 5760 6960 7424 7680 8352 9280 10440 11136 11520 13920 14848 16704 18560 20880 22272 23040 27840 28309 33408 37120 41760 44544 55680 56618 66816 74240 83520 84927 111360 113236 133632 141545 167040 169854 222720 226472 254781 283090 334080 339708 424635 452944 509562 566180 668160 679416 820961 849270 905888 1019124 1132360 1273905 1358832 1641922 1698540 1811776 2038248 2264720 2462883 2547810 2717664 3283844 3397080 3623552 4076496 4104805 4529440 4925766 5095620 5435328 6567688 6794160 7247104 7388649 8152992 8209610 9058880 9851532 10191240 10870656 12314415 13135376 13588320 14494208 14777298 16305984 16419220 18117760 19703064 20382480 21741312 24628830 26270752 27176640 29554596 32611968 32838440 36235520 36943245 39406128 40764960 43482624 49257660 52541504 54353280 59109192 65223936 65676880 72471040 73886490 78812256 81529920 98515320 105083008 108706560 118218384 130447872 131353760 147772980 157624512 163059840 197030640 210166016 217413120 236436768 262707520 295545960 315249024 326119680 394061280 420332032 472873536 525415040 591091920 630498048 652239360 788122560 945747072 1050830080 1182183840 1260996096 1576245120 1891494144 2101660160 2364367680 3152490240 3782988288 4728735360 6304980480 9457470720 18914941440
• Sum of all divisors σ(n): 67769044200
• Sum of proper divisors (its aliquot sum) s(n): 48854102760
• 18914941440 is an abundant number, because the sum of its proper divisors (48854102760) is greater than itself. Its abundance is 29939161320

Bases of 18914941440

• Binary: 10001100111011010110001101000000000₂
• Hexadecimal: 0x4676B1A00
• Base-36: 8OTGU80

Squares and roots of 18914941440

• 18914941440 squared (18914941440²) is 357775009678629273600
• 18914941440 cubed (18914941440³) is 6767293356766705929613737984000
• The square root of 18914941440 is 137531.6016048675
• The cube root of 18914941440 is 2664.4137549597

Scales and comparisons

• 18,914,941,440 seconds is equal to 601 years, 22 weeks, 4 days, 22 hours, 24 minutes.
• To count from 1 to 18,914,941,440 would take you about one thousand, two hundred two 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 18914941440 cubic inches would be around 222 feet tall.

Recreational maths with 18914941440

• 18914941440 backwards is 04414941981
• 18914941440 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18914941440's digits is 45
• More coming soon!