155113920

Names of 155113920

• Cardinal: 155113920 can be written as One hundred fifty-five million, one hundred thirteen thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.5511392 × 10⁸

Factors of 155113920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 1404

Divisors of 155113920

• Number of divisors d(n): 224
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 13 15 16 18 20 24 26 27 30 32 36 39 40 45 48 52 54 60 64 65 72 78 80 90 96 104 108 117 120 130 135 144 156 160 180 192 195 208 216 234 240 260 270 288 312 320 351 360 390 416 432 468 480 520 540 576 585 624 702 720 780 832 864 936 960 1040 1080 1170 1248 1381 1404 1440 1560 1728 1755 1872 2080 2160 2340 2496 2762 2808 2880 3120 3510 3744 4143 4160 4320 4680 5524 5616 6240 6905 7020 7488 8286 8640 9360 11048 11232 12429 12480 13810 14040 16572 17953 18720 20715 22096 22464 24858 27620 28080 33144 35906 37287 37440 41430 44192 49716 53859 55240 56160 62145 66288 71812 74574 82860 88384 89765 99432 107718 110480 112320 124290 132576 143624 149148 161577 165720 179530 186435 198864 215436 220960 248580 265152 269295 287248 298296 323154 331440 359060 372870 397728 430872 441920 484731 497160 538590 574496 596592 646308 662880 718120 745740 795456 807885 861744 969462 994320 1077180 1148992 1193184 1292616 1325760 1436240 1491480 1615770 1723488 1938924 1988640 2154360 2386368 2423655 2585232 2872480 2982960 3231540 3446976 3877848 3977280 4308720 4847310 5170464 5744960 5965920 6463080 7755696 8617440 9694620 10340928 11931840 12926160 15511392 17234880 19389240 25852320 31022784 38778480 51704640 77556960 155113920
• Sum of all divisors σ(n): 589727040
• Sum of proper divisors (its aliquot sum) s(n): 434613120
• 155113920 is an abundant number, because the sum of its proper divisors (434613120) is greater than itself. Its abundance is 279499200

Bases of 155113920

• Binary: 1001001111101101100111000000₂
• Hexadecimal: 0x93ED9C0
• Base-36: 2KCMO0

Squares and roots of 155113920

• 155113920 squared (155113920²) is 24060328177766400
• 155113920 cubed (155113920³) is 3732091820139803148288000
• The square root of 155113920 is 12454.4738949503
• The cube root of 155113920 is 537.3001037821

Scales and comparisons

• 155,113,920 seconds is equal to 4 years, 48 weeks, 3 days, 7 hours, 12 minutes.
• To count from 1 to 155,113,920 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 155113920 cubic inches would be around 44.8 feet tall.

Recreational maths with 155113920

• 155113920 backwards is 029311551
• 155113920 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 155113920's digits is 27
• More coming soon!