161299438128

Names of 161299438128

• Cardinal: 161299438128 can be written as One hundred sixty-one billion, two hundred ninety-nine million, four hundred thirty-eight thousand, one hundred twenty-eight.

Scientific notation

• Scientific notation: 1.61299438128 × 10¹¹

Factors of 161299438128

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 137

Divisors of 161299438128

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 19 24 27 36 38 48 54 57 72 76 81 108 113 114 144 152 162 171 216 226 228 243 304 324 339 342 361 432 452 456 486 513 648 678 684 722 729 904 912 972 1017 1026 1083 1296 1356 1368 1444 1458 1539 1808 1944 2034 2052 2147 2166 2187 2712 2736 2888 2916 3051 3078 3249 3888 4068 4104 4294 4332 4374 4617 5424 5776 5832 6102 6156 6441 6498 8136 8208 8588 8664 8748 9153 9234 9747 11664 12204 12312 12769 12882 12996 13851 16272 17176 17328 17496 18306 18468 19323 19494 24408 24624 25538 25764 25992 27459 27702 29241 34352 34992 36612 36936 38307 38646 38988 40793 41553 48816 51076 51528 51984 54918 55404 57969 58482 73224 73872 76614 77292 77976 81586 82377 83106 87723 102152 103056 109836 110808 114921 115938 116964 122379 146448 153228 154584 155952 163172 164754 166212 173907 175446 204304 219672 221616 229842 231876 233928 242611 244758 247131 263169 306456 309168 326344 329508 332424 344763 347814 350892 367137 439344 459684 463752 467856 485222 489516 494262 521721 526338 612912 652688 659016 664848 689526 695628 701784 727833 734274 789507 919368 927504 970444 979032 988524 1034289 1043442 1052676 1101411 1318032 1379052 1391256 1403568 1455666 1468548 1565163 1579014 1838736 1940888 1958064 1977048 2068578 2086884 2105352 2183499 2202822 2758104 2782512 2911332 2937096 3102867 3130326 3158028 3304233 3881776 3954096 4137156 4173768 4210704 4366998 4405644 4609609 4695489 5516208 5822664 5874192 6205734 6260652 6316056 6550497 6608466 8274312 8347536 8733996 8811288 9219218 9308601 9390978 9912699 11645328 12411468 12521304 12632112 13100994 13216932 13828827 16548624 17467992 17622576 18438436 18617202 18781956 19651491 19825398 24822936 25042608 26201988 26433864 27657654 27925803 29738097 34935984 36876872 37234404 37563912 39302982 39650796 41486481 49645872 52403976 52867728 55315308 55851606 58954473 59476194 73753744 74468808 75127824 78605964 79301592 82972962 89214291 104807952 110630616 111703212 117908946 118952388 124459443 148937616 157211928 158603184 165945924 176863419 178428582 221261232 223406424 235817892 237904776 248918886 314423856 331891848 353726838 356857164 373378329 446812848 471635784 475809552 497837772 530590257 663783696 707453676 713714328 746756658 943271568 995675544 1061180514 1120134987 1414907352 1427428656 1493513316 1991351088 2122361028 2240269974 2829814704 2987026632 3360404961 4244722056 4480539948 5974053264 6720809922 8489444112 8961079896 10081214883 13441619844 17922159792 20162429766 26883239688 40324859532 53766479376 80649719064 161299438128
• Sum of all divisors σ(n): 499088450640
• Sum of proper divisors (its aliquot sum) s(n): 337789012512
• 161299438128 is an abundant number, because the sum of its proper divisors (337789012512) is greater than itself. Its abundance is 176489574384

Bases of 161299438128

• Binary: 10010110001110001100100001101000110000₂
• Hexadecimal: 0x258E321A30
• Base-36: 223LIR00

Squares and roots of 161299438128

• 161299438128 squared (161299438128²) is 26017508740408500144384
• 161299438128 cubed (161299438128³) is 4196609541318220082484346074673152
• The square root of 161299438128 is 401621.0130558409
• The cube root of 161299438128 is 5443.4923658783

Scales and comparisons

• 161,299,438,128 seconds is equal to 5,128 years, 42 weeks, 5 days, 15 hours, 28 minutes, 48 seconds.
• To count from 1 to 161,299,438,128 would take you about ten thousand, two hundred fifty-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 161299438128 cubic inches would be around 453.6 feet tall.

Recreational maths with 161299438128

• 161299438128 backwards is 821834992161
• 161299438128 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 161299438128's digits is 54
• More coming soon!