155371258728

Names of 155371258728

• Cardinal: 155371258728 can be written as One hundred fifty-five billion, three hundred seventy-one million, two hundred fifty-eight thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 1.55371258728 × 10¹¹

Factors of 155371258728

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 152

Divisors of 155371258728

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 18 21 24 27 28 31 36 42 54 56 62 63 72 81 84 93 108 109 124 126 162 168 186 189 216 217 218 243 248 252 279 324 327 372 378 434 436 486 504 558 567 648 651 654 744 756 763 837 868 872 961 972 981 1116 1134 1302 1308 1512 1526 1674 1701 1736 1922 1944 1953 1962 2232 2268 2289 2511 2604 2616 2883 2943 3052 3348 3379 3402 3844 3906 3924 4536 4578 5022 5208 5766 5859 5886 6104 6696 6727 6758 6804 6867 7533 7688 7812 7848 8649 8829 9156 10044 10137 11532 11718 11772 11881 13454 13516 13608 13734 15066 15624 17298 17577 17658 18312 20088 20181 20274 20601 23064 23436 23544 23653 23762 25947 26487 26908 27032 27468 30132 30411 34596 35154 35316 35643 40362 40548 41202 46872 47306 47524 51894 52731 52974 53816 54936 60264 60543 60822 61803 69192 70308 70632 70959 71286 77841 80724 81096 82404 83167 91233 94612 95048 103788 104749 105462 105948 106929 121086 121644 123606 140616 141918 142572 155682 161448 164808 166334 181629 182466 185409 189224 207576 209498 210924 211896 212877 213858 233523 242172 243288 247212 249501 273699 283836 285144 311364 314247 320787 332668 363258 364932 368311 370818 418996 421848 425754 427716 467046 484344 494424 499002 544887 547398 567672 622728 628494 638631 641574 665336 726516 729864 733243 736622 741636 748503 821097 837992 851508 855432 934092 942741 962361 998004 1089774 1094796 1104933 1256988 1277262 1283148 1453032 1466486 1473244 1483272 1497006 1634661 1642194 1703016 1868184 1885482 1915893 1924722 1996008 2179548 2189592 2199729 2209866 2245509 2513976 2554524 2566296 2578177 2828223 2887083 2932972 2946488 2994012 3269322 3284388 3314799 3770964 3831786 3849444 4359096 4399458 4419732 4491018 5109048 5156354 5656446 5747679 5774166 5865944 5988024 6538644 6568776 6599187 6629598 6736527 7541928 7663572 7698888 7734531 8484669 8798916 8839464 8982036 9944397 10312708 11312892 11417641 11495358 11548332 13077288 13198374 13259196 13473054 15327144 15469062 16969338 17597832 17964072 19797561 19888794 20209581 20625416 22625784 22835282 22990716 23096664 23203593 25454007 26396748 26518392 26946108 29833191 30938124 33938676 34252923 39595122 39777588 40419162 45670564 45981432 46407186 50908014 52793496 53892216 59392683 59666382 61876248 67877352 68505846 69610779 79190244 79555176 79923487 80838324 89499573 91341128 92814372 101816028 102758769 118785366 119332764 137011692 139221558 158380488 159846974 161676648 178178049 178999146 185628744 203632056 205517538 208832337 237570732 238665528 239770461 274023384 278443116 308276307 319693948 356356098 357998292 411035076 417664674 475141464 479540922 556886232 616552614 626497011 639387896 712712196 715996584 719311383 822070152 835329348 924828921 959081844 1233105228 1252994022 1425424392 1438622766 1670658696 1849657842 1918163688 2157934149 2466210456 2505988044 2774486763 2877245532 3699315684 4315868298 5011976088 5548973526 5754491064 6473802447 7398631368 8631736596 11097947052 12947604894 17263473192 19421407341 22195894104 25895209788 38842814682 51790419576 77685629364 155371258728
• Sum of all divisors σ(n): 520100511840
• Sum of proper divisors (its aliquot sum) s(n): 364729253112
• 155371258728 is an abundant number, because the sum of its proper divisors (364729253112) is greater than itself. Its abundance is 209357994384

Bases of 155371258728

• Binary: 10010000101100110110010100001101101000₂
• Hexadecimal: 0x242CD94368
• Base-36: 1ZDK1AI0

Squares and roots of 155371258728

• 155371258728 squared (155371258728²) is 24140228038723116177984
• 155371258728 cubed (155371258728³) is 3750697616357369286443954561444352
• The square root of 155371258728 is 394171.6107585629
• The cube root of 155371258728 is 5375.9707204041

Scales and comparisons

• 155,371,258,728 seconds is equal to 4,940 years, 16 weeks, 6 days, 10 hours, 58 minutes, 48 seconds.
• To count from 1 to 155,371,258,728 would take you about nine thousand, eight hundred eighty 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 155371258728 cubic inches would be around 448 feet tall.

Recreational maths with 155371258728

• 155371258728 backwards is 827852173551
• 155371258728 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 155371258728's digits is 54
• More coming soon!