18904432128

Names of 18904432128

• Cardinal: 18904432128 can be written as Eighteen billion, nine hundred four million, four hundred thirty-two thousand, one hundred twenty-eight.

Scientific notation

• Scientific notation: 1.8904432128 × 10¹⁰

Factors of 18904432128

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 458

Divisors of 18904432128

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 4 6 8 12 16 19 24 32 38 48 57 64 76 96 103 114 128 152 192 206 228 256 304 309 331 361 384 412 456 512 608 618 662 722 768 824 912 993 1083 1216 1236 1324 1444 1536 1648 1824 1957 1986 2166 2432 2472 2648 2888 3296 3648 3914 3972 4332 4864 4944 5296 5776 5871 6289 6592 7296 7828 7944 8664 9728 9888 10592 11552 11742 12578 13184 14592 15656 15888 17328 18867 19776 21184 23104 23484 25156 26368 29184 31312 31776 34093 34656 37183 37734 39552 42368 46208 46968 50312 52736 62624 63552 68186 69312 74366 75468 79104 84736 92416 93936 100624 102279 111549 119491 125248 127104 136372 138624 148732 150936 158208 169472 184832 187872 201248 204558 223098 238982 250496 254208 272744 277248 297464 301872 358473 375744 402496 409116 446196 477964 500992 508416 545488 554496 594928 603744 647767 716946 751488 804992 818232 892392 955928 1001984 1090976 1189856 1207488 1295534 1433892 1502976 1609984 1636464 1784784 1911856 1943301 2181952 2379712 2414976 2591068 2867784 3005952 3219968 3272928 3569568 3823712 3886602 4363904 4759424 4829952 5182136 5735568 6545856 7139136 7647424 7773204 8727808 9518848 9659904 10364272 11471136 12307573 13091712 14278272 15294848 15546408 17455616 19037696 20728544 22942272 24615146 26183424 28556544 30589696 31092816 36922719 41457088 45884544 49230292 52366848 57113088 61179392 62185632 73845438 82914176 91769088 98460584 124371264 147690876 165828352 183538176 196921168 248742528 295381752 331656704 393842336 497485056 590763504 787684672 994970112 1181527008 1575369344 2363054016 3150738688 4726108032 6301477376 9452216064 18904432128
• Sum of all divisors σ(n): 53830947456
• Sum of proper divisors (its aliquot sum) s(n): 34926515328
• 18904432128 is an abundant number, because the sum of its proper divisors (34926515328) is greater than itself. Its abundance is 16022083200

Bases of 18904432128

• Binary: 10001100110110010101011111000000000₂
• Hexadecimal: 0x466CABE00
• Base-36: 8ON7L6O

Squares and roots of 18904432128

• 18904432128 squared (18904432128²) is 357377554082158608384
• 18904432128 cubed (18904432128³) is 6756019715216816747926259761152
• The square root of 18904432128 is 137493.3893974543
• The cube root of 18904432128 is 2663.9202061067

Scales and comparisons

• 18,904,432,128 seconds is equal to 601 years, 5 weeks, 2 days, 7 hours, 8 minutes, 48 seconds.
• To count from 1 to 18,904,432,128 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 18904432128 cubic inches would be around 222 feet tall.

Recreational maths with 18904432128

• 18904432128 backwards is 82123440981
• The number of decimal digits it has is: 11
• The sum of 18904432128's digits is 42
• More coming soon!