1989090400

Names of 1989090400

• Cardinal: 1989090400 can be written as One billion, nine hundred eighty-nine million, ninety thousand, four hundred.

Scientific notation

• Scientific notation: 1.9890904 × 10⁹

Factors of 1989090400

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 245

Divisors of 1989090400

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 4 5 8 10 11 16 20 22 25 32 37 40 41 44 50 55 74 80 82 88 100 110 148 149 160 164 176 185 200 205 220 275 296 298 328 352 370 400 407 410 440 451 550 592 596 656 740 745 800 814 820 880 902 925 1025 1100 1184 1192 1312 1480 1490 1517 1628 1639 1640 1760 1804 1850 2035 2050 2200 2255 2384 2960 2980 3034 3256 3278 3280 3608 3700 3725 4070 4100 4400 4510 4768 5513 5920 5960 6068 6109 6512 6556 6560 7216 7400 7450 7585 8140 8195 8200 8800 9020 10175 11026 11275 11920 12136 12218 13024 13112 14432 14800 14900 15170 16280 16390 16400 16687 18040 20350 22052 22550 23840 24272 24436 26224 27565 29600 29800 30340 30545 32560 32780 32800 33374 36080 37925 40700 40975 44104 45100 48544 48872 52448 55130 59600 60643 60680 61090 65120 65560 66748 67199 72160 75850 81400 81950 83435 88208 90200 97744 110260 119200 121286 121360 122180 131120 133496 134398 137825 151700 152725 162800 163900 166870 176416 180400 195488 220520 226033 242572 242720 244360 262240 266992 268796 275650 303215 303400 305450 325600 327800 333740 335995 360800 417175 441040 452066 485144 488720 533984 537592 551300 606430 606800 610900 655600 667480 671990 834350 882080 904132 970288 977440 1075184 1102600 1130165 1212860 1213600 1221800 1311200 1334960 1343980 1516075 1668700 1679975 1808264 1940576 2150368 2205200 2260330 2425720 2443600 2486363 2669920 2687960 3032150 3337400 3359950 3616528 4410400 4520660 4851440 4887200 4972726 5375920 5650825 6064300 6674800 6719900 7233056 9041320 9702880 9945452 10751840 11301650 12128600 12431815 13349600 13439800 18082640 19890904 22603300 24257200 24863630 26879600 36165280 39781808 45206600 48514400 49727260 53759200 62159075 79563616 90413200 99454520 124318150 180826400 198909040 248636300 397818080 497272600 994545200 1989090400
• Sum of all divisors σ(n): 5610578400
• Sum of proper divisors (its aliquot sum) s(n): 3621488000
• 1989090400 is an abundant number, because the sum of its proper divisors (3621488000) is greater than itself. Its abundance is 1632397600

Bases of 1989090400

• Binary: 1110110100011110001110001100000₂
• Hexadecimal: 0x768F1C60
• Base-36: WW93Z4

Squares and roots of 1989090400

• 1989090400 squared (1989090400²) is 3956480619372160000
• 1989090400 cubed (1989090400³) is 7869797617779217483264000000
• The square root of 1989090400 is 44599.2197241161
• The cube root of 1989090400 is 1257.6259993609

Scales and comparisons

• 1,989,090,400 seconds is equal to 63 years, 12 weeks, 5 days, 21 hours, 6 minutes, 40 seconds.
• To count from 1 to 1,989,090,400 would take you about one hundred twenty-six 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 1989090400 cubic inches would be around 104.8 feet tall.

Recreational maths with 1989090400

• 1989090400 backwards is 0040909891
• 1989090400 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 1989090400's digits is 40
• More coming soon!