21397942500

Names of 21397942500

• Cardinal: 21397942500 can be written as Twenty-one billion, three hundred ninety-seven million, nine hundred forty-two thousand, five hundred.

Scientific notation

• Scientific notation: 2.13979425 × 10¹⁰

Factors of 21397942500

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 130

Divisors of 21397942500

• Number of divisors d(n): 720
• Complete list of divisors:
  1 2 3 4 5 6 10 11 12 15 17 19 20 22 25 30 33 34 38 44 50 51 55 57 60 66 68 73 75 76 85 95 100 102 110 114 121 125 132 146 150 165 170 187 190 204 209 219 220 228 242 250 255 275 285 292 300 323 330 340 363 365 374 375 380 418 425 438 475 484 500 510 550 561 570 605 625 627 646 660 726 730 748 750 803 825 836 850 876 935 950 969 1020 1045 1095 1100 1122 1140 1210 1241 1250 1254 1275 1292 1375 1387 1425 1452 1460 1500 1606 1615 1650 1700 1815 1825 1870 1875 1900 1938 2057 2090 2125 2190 2244 2299 2375 2409 2420 2482 2500 2508 2550 2750 2774 2805 2850 3025 3135 3212 3230 3300 3553 3630 3650 3723 3740 3750 3876 4015 4114 4125 4161 4180 4250 4380 4598 4675 4750 4818 4845 4964 5100 5225 5475 5500 5548 5610 5700 6050 6171 6205 6270 6375 6460 6875 6897 6935 7106 7125 7260 7300 7446 7500 8030 8075 8228 8250 8322 8500 8833 9075 9125 9196 9350 9500 9636 9690 10285 10450 10625 10659 10950 11220 11495 11875 12045 12100 12342 12410 12540 12750 13651 13750 13794 13870 14025 14212 14250 14892 15125 15257 15675 16060 16150 16500 16644 17666 17765 18150 18250 18615 18700 19380 20075 20570 20625 20805 20900 21250 21318 21900 22990 23375 23579 23750 24090 24225 24684 24820 25500 26125 26499 27302 27375 27500 27588 27740 28050 28500 30250 30514 30855 31025 31350 31875 32300 34485 34675 35332 35530 35625 36300 36500 37230 39083 40150 40375 40953 41140 41250 41610 42500 42636 44165 45375 45625 45771 45980 46750 47158 47500 48180 48450 51425 52250 52998 53295 54604 54750 56100 57475 60225 60500 61028 61710 62050 62700 63750 68255 68970 69350 70125 70737 71060 71250 74460 75625 76285 78166 78375 80300 80750 81906 82500 83220 88330 88825 90750 91250 91542 93075 93500 94316 96900 100375 102850 104025 104500 105996 106590 109500 114950 116875 117249 117895 120450 121125 123420 124100 127500 130625 132495 136510 136875 137940 138700 140250 141474 142500 150161 151250 152570 154275 155125 156332 156750 161500 163812 167827 172425 173375 176660 177650 181500 182500 183084 186150 195415 200750 201875 204765 205700 208050 213180 220825 226875 228855 229900 233750 234498 235790 240900 242250 257125 259369 261250 264990 266475 273020 273750 280500 282948 287375 300322 301125 302500 305140 308550 310250 313500 335654 341275 344850 346750 350625 353685 355300 372300 381425 390830 391875 401500 403750 409530 416100 441650 444125 450483 453750 457710 465375 467500 468996 471580 484500 501875 503481 514250 518738 520125 522500 529980 532950 547500 574750 586245 589475 600644 602250 605625 617100 620500 662475 671308 682550 689700 693500 701250 707370 750805 762850 771375 775625 778107 781660 783750 807500 819060 839135 862125 866875 883300 888250 900966 907500 915420 930750 977075 1003750 1006962 1023825 1028500 1037476 1040250 1065900 1104125 1144275 1149500 1172490 1178950 1204500 1211250 1285625 1296845 1324950 1332375 1365100 1402500 1414740 1436875 1501610 1505625 1525700 1542750 1551250 1556214 1567500 1678270 1706375 1724250 1733750 1768425 1776500 1801932 1861500 1907125 1954150 2007500 2013924 2047650 2080500 2208250 2220625 2252415 2288550 2326875 2344980 2357900 2422500 2517405 2571250 2593690 2600625 2649900 2664750 2853059 2873750 2931225 2947375 3003220 3011250 3085500 3102500 3112428 3312375 3356540 3412750 3448500 3467500 3536850 3754025 3814250 3856875 3890535 3908300 4095300 4195675 4310625 4416500 4441250 4504830 4577100 4653750 4885375 5034810 5119125 5142500 5187380 5201250 5329500 5520625 5706118 5721375 5747500 5862450 5894750 6022500 6484225 6624750 6661875 6825500 7073700 7508050 7628500 7713750 7781070 8391350 8531875 8559177 8621250 8842125 8882500 9009660 9307500 9535625 9770750 10069620 10238250 10402500 11041250 11262075 11412236 11442750 11724900 11789500 12587025 12968450 13249500 13323750 14265295 14656125 14736875 15016100 15427500 15562140 16561875 16782700 17063750 17118354 17242500 17684250 18770125 19071250 19452675 19541500 20476500 20978375 22082500 22524150 22885500 24426875 25174050 25595625 25936900 26647500 28530590 28606875 29312250 29473750 32421125 33123750 34127500 34236708 35368500 37540250 38142500 38905350 41956750 42795885 44210625 45048300 48853750 50348100 51191250 56310375 57061180 57213750 58624500 58947500 62935125 64842250 66247500 71326475 73280625 75080500 77810700 83913500 85591770 88421250 93850625 97263375 97707500 102382500 104891875 112620750 114427500 125870250 129684500 142652950 146561250 162105625 171183540 176842500 187701250 194526750 209783750 213979425 225241500 251740500 281551875 285305900 293122500 314675625 324211250 356632375 375402500 389053500 419567500 427958850 486316875 563103750 629351250 648422500 713264750 855917700 972633750 1069897125 1126207500 1258702500 1426529500 1783161875 1945267500 2139794250 3566323750 4279588500 5349485625 7132647500 10698971250 21397942500
• Sum of all divisors σ(n): 77480948160
• Sum of proper divisors (its aliquot sum) s(n): 56083005660
• 21397942500 is an abundant number, because the sum of its proper divisors (56083005660) is greater than itself. Its abundance is 34685063160

Bases of 21397942500

• Binary: 10011111011011010101011000011100100₂
• Hexadecimal: 0x4FB6AB0E4
• Base-36: 9TVS63O

Squares and roots of 21397942500

• 21397942500 squared (21397942500²) is 457871943233306250000
• 21397942500 cubed (21397942500³) is 9797517513669551222390625000000
• The square root of 21397942500 is 146280.3558240135
• The cube root of 21397942500 is 2776.2421190391

Scales and comparisons

• 21,397,942,500 seconds is equal to 680 years, 20 weeks, 1 day, 8 hours, 55 minutes.
• To count from 1 to 21,397,942,500 would take you about one thousand, three hundred sixty 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 21397942500 cubic inches would be around 231.4 feet tall.

Recreational maths with 21397942500

• 21397942500 backwards is 00524979312
• The number of decimal digits it has is: 11
• The sum of 21397942500's digits is 42
• More coming soon!