18945293120

Names of 18945293120

• Cardinal: 18945293120 can be written as Eighteen billion, nine hundred forty-five million, two hundred ninety-three thousand, one hundred twenty.

Scientific notation

• Scientific notation: 1.894529312 × 10¹⁰

Factors of 18945293120

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 739

Divisors of 18945293120

• Number of divisors d(n): 224
• Complete list of divisors:
  1 2 4 5 8 10 13 16 20 26 32 40 41 52 64 65 80 82 104 130 160 164 205 208 260 277 320 328 401 410 416 520 533 554 656 802 820 832 1040 1066 1108 1312 1385 1604 1640 2005 2080 2132 2216 2624 2665 2770 3208 3280 3601 4010 4160 4264 4432 5213 5330 5540 6416 6560 7202 8020 8528 8864 10426 10660 11080 11357 12832 13120 14404 16040 16441 17056 17728 18005 20852 21320 22160 22714 25664 26065 28808 32080 32882 34112 36010 41704 42640 44320 45428 52130 56785 57616 64160 65764 72020 82205 83408 85280 88640 90856 104260 111077 113570 115232 128320 131528 144040 147641 164410 166816 170560 181712 208520 213733 222154 227140 230464 263056 288080 295282 328820 333632 363424 417040 427466 444308 454280 526112 555385 576160 590564 657640 726848 738205 834080 854932 888616 908560 1052224 1068665 1110770 1152320 1181128 1315280 1444001 1476410 1668160 1709864 1777232 1817120 2137330 2221540 2362256 2630560 2888002 2952820 3419728 3554464 3634240 4274660 4443080 4554157 4724512 5261120 5776004 5905640 6839456 7108928 7220005 8549320 8886160 9108314 9449024 11552008 11811280 13678912 14440010 17098640 17772320 18216628 22770785 23104016 23622560 28880020 34197280 35544640 36433256 45541570 46208032 47245120 57760040 59204041 68394560 72866512 91083140 92416064 115520080 118408082 145733024 182166280 231040160 236816164 291466048 296020205 364332560 462080320 473632328 592040410 728665120 947264656 1184080820 1457330240 1894529312 2368161640 3789058624 4736323280 9472646560 18945293120
• Sum of all divisors σ(n): 50072946336
• Sum of proper divisors (its aliquot sum) s(n): 31127653216
• 18945293120 is an abundant number, because the sum of its proper divisors (31127653216) is greater than itself. Its abundance is 12182360096

Bases of 18945293120

• Binary: 10001101001001110100011101101000000₂
• Hexadecimal: 0x4693A3B40
• Base-36: 8PBJDQ8

Squares and roots of 18945293120

• 18945293120 squared (18945293120²) is 358924131402719334400
• 18945293120 cubed (18945293120³) is 6799922877265914555299299328000
• The square root of 18945293120 is 137641.9017596023
• The cube root of 18945293120 is 2665.8381353805

Scales and comparisons

• 18,945,293,120 seconds is equal to 602 years, 20 weeks, 6 days, 5 hours, 25 minutes, 20 seconds.
• To count from 1 to 18,945,293,120 would take you about one thousand, two hundred four 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 18945293120 cubic inches would be around 222.2 feet tall.

Recreational maths with 18945293120

• 18945293120 backwards is 02139254981
• The number of decimal digits it has is: 11
• The sum of 18945293120's digits is 44
• More coming soon!