121138740

Names of 121138740

• Cardinal: 121138740 can be written as One hundred twenty-one million, one hundred thirty-eight thousand, seven hundred forty.

Scientific notation

• Scientific notation: 1.2113874 × 10⁸

Factors of 121138740

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 137

Divisors of 121138740

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 37 43 45 47 54 60 74 81 86 90 94 108 111 129 135 141 148 162 172 180 185 188 215 222 235 258 270 282 324 333 370 387 405 423 430 444 470 516 540 555 564 645 666 705 740 774 810 846 860 940 999 1110 1161 1269 1290 1332 1410 1548 1591 1620 1665 1692 1739 1935 1998 2021 2115 2220 2322 2538 2580 2820 2997 3182 3330 3478 3483 3807 3870 3996 4042 4230 4644 4773 4995 5076 5217 5805 5994 6063 6345 6364 6660 6956 6966 7614 7740 7955 8084 8460 8695 9546 9990 10105 10434 11610 11988 12126 12690 13932 14319 14985 15228 15651 15910 17390 17415 18189 19035 19092 19980 20210 20868 23220 23865 24252 25380 26085 28638 29970 30315 31302 31820 34780 34830 36378 38070 40420 42957 46953 47730 52170 54567 57276 59940 60630 62604 69660 71595 72756 74777 76140 78255 85914 90945 93906 95460 104340 109134 121260 128871 140859 143190 149554 156510 163701 171828 181890 187812 214785 218268 224331 234765 257742 272835 281718 286380 299108 313020 327402 363780 373885 429570 448662 469530 515484 545670 563436 644355 654804 672993 704295 747770 818505 859140 897324 939060 1091340 1121655 1288710 1345986 1408590 1495540 1637010 2018979 2243310 2577420 2691972 2817180 3274020 3364965 4037958 4486620 6056937 6729930 8075916 10094895 12113874 13459860 20189790 24227748 30284685 40379580 60569370 121138740
• Sum of all divisors σ(n): 407860992
• Sum of proper divisors (its aliquot sum) s(n): 286722252
• 121138740 is an abundant number, because the sum of its proper divisors (286722252) is greater than itself. Its abundance is 165583512

Bases of 121138740

• Binary: 111001110000110111000110100₂
• Hexadecimal: 0x7386E34
• Base-36: 204F90

Squares and roots of 121138740

• 121138740 squared (121138740²) is 14674594328787600
• 121138740 cubed (121138740³) is 1777661867000475591624000
• The square root of 121138740 is 11006.3045569347
• The cube root of 121138740 is 494.7977134885

Scales and comparisons

• 121,138,740 seconds is equal to 3 years, 44 weeks, 2 days, 1 hour, 39 minutes.
• To count from 1 to 121,138,740 would take you about 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 121138740 cubic inches would be around 41.2 feet tall.

Recreational maths with 121138740

• 121138740 backwards is 047831121
• 121138740 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 121138740's digits is 27
• More coming soon!