21311631250

Names of 21311631250

• Cardinal: 21311631250 can be written as Twenty-one billion, three hundred eleven million, six hundred thirty-one thousand, two hundred fifty.

Scientific notation

• Scientific notation: 2.131163125 × 10¹⁰

Factors of 21311631250

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 181

Divisors of 21311631250

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 5 7 10 13 14 25 26 35 49 50 53 65 70 91 98 101 106 125 130 175 182 202 245 250 265 325 350 371 455 490 505 530 625 637 650 689 707 742 875 910 1010 1225 1250 1274 1313 1325 1378 1414 1625 1750 1855 2275 2450 2525 2597 2626 2650 3125 3185 3250 3445 3535 3710 4375 4550 4823 4949 5050 5194 5353 6125 6250 6370 6565 6625 6890 7070 8125 8750 9191 9275 9646 9898 10706 11375 12250 12625 12985 13130 13250 15925 16250 17225 17675 18382 18550 21875 22750 24115 24745 25250 25970 26765 30625 31850 32825 33125 33761 34450 35350 37471 40625 43750 45955 46375 48230 49490 53530 56875 61250 63125 64337 64925 65650 66250 67522 69589 74942 79625 81250 86125 88375 91910 92750 113750 120575 123725 126250 128674 129850 133825 139178 153125 159250 164125 165625 168805 172250 176750 187355 229775 231875 241150 247450 262297 267650 284375 306250 315625 321685 324625 328250 331250 337610 347945 374710 398125 430625 441875 459550 463750 487123 524594 568750 602875 618625 631250 643370 649250 669125 695890 796250 820625 844025 861250 883750 936775 974246 1148875 1159375 1205750 1237250 1311485 1338250 1608425 1623125 1641250 1688050 1739725 1873550 1990625 2153125 2209375 2297750 2318750 2435615 2622970 3014375 3093125 3216850 3246250 3345625 3409861 3479450 3981250 4103125 4220125 4306250 4418750 4683875 4871230 5744375 6028750 6186250 6557425 6691250 6819722 8042125 8115625 8206250 8440250 8698625 9367750 11488750 12178075 13114850 15071875 15465625 16084250 16231250 16728125 17049305 17397250 21100625 23419375 24356150 28721875 30143750 30931250 32787125 33456250 34098610 40210625 42201250 43493125 46838750 57443750 60890375 65574250 80421250 85246525 86986250 105503125 117096875 121780750 163935625 170493050 201053125 211006250 217465625 234193750 304451875 327871250 402106250 426232625 434931250 608903750 819678125 852465250 1522259375 1639356250 2131163125 3044518750 4262326250 10655815625 21311631250
• Sum of all divisors σ(n): 51505109712
• Sum of proper divisors (its aliquot sum) s(n): 30193478462
• 21311631250 is an abundant number, because the sum of its proper divisors (30193478462) is greater than itself. Its abundance is 8881847212

Bases of 21311631250

• Binary: 10011110110010001011010111110010010₂
• Hexadecimal: 0x4F645AF92
• Base-36: 9SGE7WY

Squares and roots of 21311631250

• 21311631250 squared (21311631250²) is 454185626535976562500
• 21311631250 cubed (21311631250³) is 9679436591784947358642578125000
• The square root of 21311631250 is 145985.0377607239
• The cube root of 21311631250 is 2772.5043168063

Scales and comparisons

• 21,311,631,250 seconds is equal to 677 years, 33 weeks, 3 days, 9 hours, 34 minutes, 10 seconds.
• To count from 1 to 21,311,631,250 would take you about one thousand, three hundred fifty-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 21311631250 cubic inches would be around 231 feet tall.

Recreational maths with 21311631250

• 21311631250 backwards is 05213611312
• 21311631250 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21311631250's digits is 25
• More coming soon!