155297142

Names of 155297142

• Cardinal: 155297142 can be written as One hundred fifty-five million, two hundred ninety-seven thousand, one hundred forty-two.

Scientific notation

• Scientific notation: 1.55297142 × 10⁸

Factors of 155297142

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 53

Divisors of 155297142

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 3 6 7 9 11 13 14 17 18 21 22 26 27 33 34 39 42 51 54 63 66 77 78 91 99 102 117 119 126 143 153 154 169 182 187 189 198 221 231 234 238 273 286 297 306 338 351 357 374 378 429 442 459 462 507 546 561 594 663 693 702 714 819 858 918 1001 1014 1071 1122 1183 1287 1309 1326 1386 1521 1547 1638 1683 1859 1989 2002 2079 2142 2197 2366 2431 2457 2574 2618 2873 3003 3042 3094 3213 3366 3549 3718 3861 3927 3978 4158 4394 4563 4641 4862 4914 5049 5577 5746 5967 6006 6426 6591 7098 7293 7722 7854 8619 9009 9126 9282 10098 10647 11154 11781 11934 13013 13182 13923 14586 15379 16731 17017 17238 18018 19773 20111 21294 21879 23562 24167 25857 26026 27027 27846 30758 31603 31941 33462 34034 35343 37349 39039 39546 40222 41769 43758 46137 48334 50193 51051 51714 54054 59319 60333 63206 63882 65637 70686 72501 74698 77571 78078 83538 92274 94809 100386 102102 112047 117117 118638 120666 131274 138411 145002 153153 155142 169169 180999 189618 217503 221221 224094 234234 261443 276822 284427 306306 336141 338338 351351 361998 410839 415233 435006 442442 459459 507507 522886 542997 568854 652509 663663 672282 702702 784329 821678 830466 853281 918918 1008423 1015014 1085994 1232517 1305018 1327326 1522521 1568658 1706562 1990989 2016846 2352987 2465034 2875873 3045042 3697551 3981978 4567563 4705974 5751746 5972967 7058961 7395102 8627619 9135126 11092653 11945934 14117922 17255238 22185306 25882857 51765714 77648571 155297142
• Sum of all divisors σ(n): 493516800
• Sum of proper divisors (its aliquot sum) s(n): 338219658
• 155297142 is an abundant number, because the sum of its proper divisors (338219658) is greater than itself. Its abundance is 182922516

Bases of 155297142

• Binary: 1001010000011010010101110110₂
• Hexadecimal: 0x941A576
• Base-36: 2KGK1I

Squares and roots of 155297142

• 155297142 squared (155297142²) is 24117202313368164
• 155297142 cubed (155297142³) is 3745332592301864262987288
• The square root of 155297142 is 12461.8273940863
• The cube root of 155297142 is 537.5115751609

Scales and comparisons

• 155,297,142 seconds is equal to 4 years, 48 weeks, 5 days, 10 hours, 5 minutes, 42 seconds.
• To count from 1 to 155,297,142 would take you about seven 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 155297142 cubic inches would be around 44.8 feet tall.

Recreational maths with 155297142

• 155297142 backwards is 241792551
• The number of decimal digits it has is: 9
• The sum of 155297142's digits is 36
• More coming soon!