161398407168

Names of 161398407168

• Cardinal: 161398407168 can be written as One hundred sixty-one billion, three hundred ninety-eight million, four hundred seven thousand, one hundred sixty-eight.

Scientific notation

• Scientific notation: 1.61398407168 × 10¹¹

Factors of 161398407168

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 21
• Sum of prime factors: 13518

Divisors of 161398407168

• Number of divisors d(n): 210
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 81 96 108 128 144 162 192 216 243 256 288 324 384 432 486 512 576 648 729 768 864 972 1024 1152 1296 1458 1536 1728 1944 2048 2304 2592 2916 3072 3456 3888 4096 4608 5184 5832 6144 6912 7776 8192 9216 10368 11664 12288 13513 13824 15552 16384 18432 20736 23328 24576 27026 27648 31104 36864 40539 41472 46656 49152 54052 55296 62208 73728 81078 82944 93312 108104 110592 121617 124416 147456 162156 165888 186624 216208 221184 243234 248832 324312 331776 364851 373248 432416 442368 486468 497664 648624 663552 729702 746496 864832 972936 995328 1094553 1297248 1327104 1459404 1492992 1729664 1945872 1990656 2189106 2594496 2918808 2985984 3283659 3459328 3891744 3981312 4378212 5188992 5837616 5971968 6567318 6918656 7783488 8756424 9850977 10377984 11675232 11943936 13134636 13837312 15566976 17512848 19701954 20755968 23350464 26269272 27674624 31133952 35025696 39403908 41511936 46700928 52538544 55349248 62267904 70051392 78807816 83023872 93401856 105077088 110698496 124535808 140102784 157615632 166047744 186803712 210154176 221396992 249071616 280205568 315231264 332095488 373607424 420308352 498143232 560411136 630462528 664190976 747214848 840616704 996286464 1120822272 1260925056 1494429696 1681233408 1992572928 2241644544 2521850112 2988859392 3362466816 4483289088 5043700224 5977718784 6724933632 8966578176 10087400448 13449867264 17933156352 20174800896 26899734528 40349601792 53799469056 80699203584 161398407168
• Sum of all divisors σ(n): 483994869134
• Sum of proper divisors (its aliquot sum) s(n): 322596461966
• 161398407168 is an abundant number, because the sum of its proper divisors (322596461966) is greater than itself. Its abundance is 161198054798

Bases of 161398407168

• Binary: 10010110010100000110000100000000000000₂
• Hexadecimal: 0x2594184000
• Base-36: 2258G000

Squares and roots of 161398407168

• 161398407168 squared (161398407168²) is 26049445836367513780224
• 161398407168 cubed (161398407168³) is 4204339065598806291188444018245632
• The square root of 161398407168 is 401744.2061411713
• The cube root of 161398407168 is 5444.6054655739

Scales and comparisons

• 161,398,407,168 seconds is equal to 5,131 years, 50 weeks, 3 days, 2 hours, 52 minutes, 48 seconds.
• To count from 1 to 161,398,407,168 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 161398407168 cubic inches would be around 453.7 feet tall.

Recreational maths with 161398407168

• 161398407168 backwards is 861704893161
• 161398407168 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 161398407168's digits is 54
• More coming soon!