161393440000

Names of 161393440000

• Cardinal: 161393440000 can be written as One hundred sixty-one billion, three hundred ninety-three million, four hundred forty thousand.

Scientific notation

• Scientific notation: 1.6139344 × 10¹¹

Factors of 161393440000

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 2554

Divisors of 161393440000

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 4 5 8 10 13 16 20 25 26 31 32 40 50 52 62 64 65 80 100 104 124 125 128 130 155 160 200 208 248 250 256 260 310 320 325 400 403 416 496 500 520 620 625 640 650 775 800 806 832 992 1000 1040 1240 1250 1280 1300 1550 1600 1612 1625 1664 1984 2000 2015 2080 2480 2500 2503 2600 3100 3200 3224 3250 3328 3875 3968 4000 4030 4160 4960 5000 5006 5200 6200 6400 6448 6500 7750 7936 8000 8060 8125 8320 9920 10000 10012 10075 10400 12400 12515 12896 13000 15500 16000 16120 16250 16640 19375 19840 20000 20024 20150 20800 24800 25030 25792 26000 31000 32000 32240 32500 32539 38750 39680 40000 40048 40300 41600 49600 50060 50375 51584 52000 62000 62575 64480 65000 65078 77500 77593 80000 80096 80600 83200 99200 100120 100750 103168 104000 124000 125150 128960 130000 130156 155000 155186 160000 160192 161200 162695 198400 200240 201500 208000 248000 250300 251875 257920 260000 260312 310000 310372 312875 320384 322400 325390 387965 400480 403000 416000 496000 500600 503750 515840 520000 520624 620000 620744 625750 640768 644800 650780 775930 800960 806000 813475 992000 1001200 1007500 1008709 1040000 1041248 1240000 1241488 1251500 1289600 1301560 1551860 1564375 1601920 1612000 1626950 1939825 2002400 2015000 2017418 2080000 2082496 2480000 2482976 2503000 2579200 2603120 3103720 3128750 3203840 3224000 3253900 3879650 4004800 4030000 4034836 4067375 4164992 4960000 4965952 5006000 5043545 5206240 6207440 6257500 6448000 6507800 7759300 8009600 8060000 8069672 8134750 8329984 9699125 9931904 10012000 10087090 10412480 12414880 12515000 12896000 13015600 15518600 16019200 16120000 16139344 16269500 19398250 19863808 20024000 20174180 20336875 20824960 24829760 25030000 25217725 26031200 31037200 32240000 32278688 32539000 38796500 40048000 40348360 40673750 41649920 48495625 49659520 50060000 50435450 52062400 62074400 64480000 64557376 65078000 77593000 80096000 80696720 81347500 96991250 99319040 100120000 100870900 104124800 124148800 126088625 129114752 130156000 155186000 161393440 162695000 193982500 200240000 201741800 208249600 248297600 252177250 258229504 260312000 310372000 322786880 325390000 387965000 400480000 403483600 496595200 504354500 520624000 620744000 630443125 645573760 650780000 775930000 806967200 1008709000 1041248000 1241488000 1260886250 1291147520 1301560000 1551860000 1613934400 2017418000 2482976000 2521772500 2603120000 3103720000 3227868800 4034836000 5043545000 5206240000 6207440000 6455737600 8069672000 10087090000 12414880000 16139344000 20174180000 32278688000 40348360000 80696720000 161393440000
• Sum of all divisors σ(n): 447697091072
• Sum of proper divisors (its aliquot sum) s(n): 286303651072
• 161393440000 is an abundant number, because the sum of its proper divisors (286303651072) is greater than itself. Its abundance is 124910211072

Bases of 161393440000

• Binary: 10010110010011110011000111010100000000₂
• Hexadecimal: 0x2593CC7500
• Base-36: 2255HJB4

Squares and roots of 161393440000

• 161393440000 squared (161393440000²) is 26047842475033600000000
• 161393440000 cubed (161393440000³) is 4203950901623786819584000000000000
• The square root of 161393440000 is 401738.0240903269
• The cube root of 161393440000 is 5444.5496109385

Scales and comparisons

• 161,393,440,000 seconds is equal to 5,131 years, 42 weeks, 1 day, 15 hours, 6 minutes, 40 seconds.
• To count from 1 to 161,393,440,000 would take you about ten thousand, two hundred sixty-three 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 161393440000 cubic inches would be around 453.7 feet tall.

Recreational maths with 161393440000

• 161393440000 backwards is 000044393161
• 161393440000 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 161393440000's digits is 31
• More coming soon!