72109201920

Names of 72109201920

• Cardinal: 72109201920 can be written as Seventy-two billion, one hundred nine million, two hundred one thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 7.210920192 × 10¹⁰

Factors of 72109201920

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 78935

Divisors of 72109201920

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 14 15 16 17 20 21 24 28 30 32 34 35 40 42 48 51 56 60 64 68 70 80 84 85 96 102 105 112 119 120 128 136 140 160 168 170 192 204 210 224 238 240 255 256 272 280 320 336 340 357 384 408 420 448 476 480 510 512 544 560 595 640 672 680 714 768 816 840 896 952 960 1020 1088 1120 1190 1280 1344 1360 1428 1536 1632 1680 1785 1792 1904 1920 2040 2176 2240 2380 2560 2688 2720 2856 3264 3360 3570 3584 3808 3840 4080 4352 4480 4760 5376 5440 5712 6528 6720 7140 7616 7680 8160 8704 8960 9520 10752 10880 11424 13056 13440 14280 15232 16320 17920 19040 21760 22848 26112 26880 28560 30464 32640 38080 43520 45696 53760 57120 60928 65280 76160 78901 91392 114240 130560 152320 157802 182784 228480 236703 304640 315604 394505 456960 473406 552307 631208 789010 913920 946812 1104614 1183515 1262416 1341317 1578020 1656921 1893624 2209228 2367030 2524832 2682634 2761535 3156040 3313842 3787248 4023951 4418456 4734060 5049664 5365268 5523070 6312080 6627684 6706585 7574496 8047902 8284605 8836912 9389219 9468120 10099328 10730536 11046140 12624160 13255368 13413170 15148992 16095804 16569210 17673824 18778438 18936240 20119755 20198656 21461072 22092280 25248320 26510736 26826340 28167657 30297984 32191608 33138420 35347648 37556876 37872480 40239510 40397312 42922144 44184560 46946095 50496640 53021472 53652680 56335314 60595968 64383216 66276840 70695296 75113752 75744960 80479020 85844288 88369120 93892190 100993280 106042944 107305360 112670628 121191936 128766432 132553680 140838285 141390592 150227504 151489920 160958040 171688576 176738240 187784380 201986560 212085888 214610720 225341256 257532864 265107360 281676570 282781184 300455008 302979840 321916080 343377152 353476480 375568760 424171776 429221440 450682512 515065728 530214720 563353140 600910016 605959680 643832160 686754304 706952960 751137520 848343552 858442880 901365024 1030131456 1060429440 1126706280 1201820032 1287664320 1413905920 1502275040 1716885760 1802730048 2060262912 2120858880 2253412560 2403640064 2575328640 3004550080 3433771520 3605460096 4241717760 4506825120 4807280128 5150657280 6009100160 7210920192 9013650240 10301314560 12018200320 14421840384 18027300480 24036400640 36054600960 72109201920
• Sum of all divisors σ(n): 278957074176
• Sum of proper divisors (its aliquot sum) s(n): 206847872256
• 72109201920 is an abundant number, because the sum of its proper divisors (206847872256) is greater than itself. Its abundance is 134738670336

Bases of 72109201920

• Binary: 1000011001010000010110001101000000000₂
• Hexadecimal: 0x10CA0B1A00
• Base-36: X4JYGAO

Squares and roots of 72109201920

• 72109201920 squared (72109201920²) is 5199737001539331686400
• 72109201920 cubed (72109201920³) is 374948885374895019396471717888000
• The square root of 72109201920 is 268531.5659657165
• The cube root of 72109201920 is 4162.2698165239

Scales and comparisons

• 72,109,201,920 seconds is equal to 2,292 years, 44 weeks, 1 day, 5 hours, 52 minutes.
• To count from 1 to 72,109,201,920 would take you about four thousand, five hundred eighty-five 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 72109201920 cubic inches would be around 346.9 feet tall.

Recreational maths with 72109201920

• 72109201920 backwards is 02910290127
• The number of decimal digits it has is: 11
• The sum of 72109201920's digits is 33
• More coming soon!