18918589480

Names of 18918589480

• Cardinal: 18918589480 can be written as Eighteen billion, nine hundred eighteen million, five hundred eighty-nine thousand, four hundred eighty.

Scientific notation

• Scientific notation: 1.891858948 × 10¹⁰

Factors of 18918589480

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 527

Divisors of 18918589480

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 4 5 7 8 10 14 20 28 31 35 40 56 62 70 73 124 140 146 155 217 248 280 292 310 365 409 434 511 584 620 730 818 868 1022 1085 1240 1460 1636 1736 2044 2045 2170 2263 2555 2863 2920 3272 4088 4090 4340 4526 5110 5329 5726 8180 8680 9052 10220 10658 11315 11452 12679 14315 15841 16360 18104 20440 21316 22630 22904 25358 26645 28630 29857 31682 37303 42632 45260 50716 53290 57260 59714 63364 63395 74606 79205 88753 90520 101432 106580 114520 119428 126728 126790 149212 149285 158410 165199 177506 186515 208999 213160 238856 253580 298424 298570 316820 330398 355012 373030 417998 443765 507160 597140 633640 660796 710024 746060 825995 835996 887530 925567 1044995 1156393 1194280 1321592 1492120 1651990 1671992 1775060 1851134 2089990 2179561 2312786 3303980 3550120 3702268 4179980 4359122 4625572 4627835 5781965 6478969 6607960 7404536 8359960 8718244 9251144 9255670 10897805 11563930 12957938 15256927 17436488 18511340 21795610 23127860 25915876 30513854 32394845 37022680 43591220 46255720 51831752 61027708 64789690 67566391 76284635 87182440 122055416 129579380 135132782 152569270 259158760 270265564 305138540 337831955 472964737 540531128 610277080 675663910 945929474 1351327820 1891858948 2364823685 2702655640 3783717896 4729647370 9459294740 18918589480
• Sum of all divisors σ(n): 51038899200
• Sum of proper divisors (its aliquot sum) s(n): 32120309720
• 18918589480 is an abundant number, because the sum of its proper divisors (32120309720) is greater than itself. Its abundance is 13201720240

Bases of 18918589480

• Binary: 10001100111101000101100010000101000₂
• Hexadecimal: 0x467A2C428
• Base-36: 8OVN12G

Squares and roots of 18918589480

• 18918589480 squared (18918589480²) is 357913027912766670400
• 18918589480 cubed (18918589480³) is 6771209644625413888324067392000
• The square root of 18918589480 is 137544.8635173265
• The cube root of 18918589480 is 2664.5850351293

Scales and comparisons

• 18,918,589,480 seconds is equal to 601 years, 28 weeks, 5 days, 3 hours, 44 minutes, 40 seconds.
• To count from 1 to 18,918,589,480 would take you about one thousand, two hundred three 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 18918589480 cubic inches would be around 222 feet tall.

Recreational maths with 18918589480

• 18918589480 backwards is 08498581981
• The number of decimal digits it has is: 11
• The sum of 18918589480's digits is 61
• More coming soon!