31209786972

Names of 31209786972

• Cardinal: 31209786972 can be written as Thirty-one billion, two hundred nine million, seven hundred eighty-six thousand, nine hundred seventy-two.

Scientific notation

• Scientific notation: 3.1209786972 × 10¹⁰

Factors of 31209786972

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 190

Divisors of 31209786972

• Number of divisors d(n): 720
• Complete list of divisors:
  1 2 3 4 6 7 9 12 13 14 18 21 26 27 28 36 37 39 42 49 52 54 61 63 67 74 78 81 84 91 98 108 111 117 122 126 134 147 148 156 162 182 183 189 196 201 222 234 244 252 259 268 273 294 324 333 351 364 366 378 402 427 441 444 468 469 481 518 546 549 567 588 603 637 666 702 732 756 777 793 804 819 854 871 882 938 962 999 1036 1053 1092 1098 1134 1206 1274 1281 1323 1332 1404 1407 1443 1554 1586 1638 1647 1708 1742 1764 1809 1813 1876 1911 1924 1998 2106 2196 2257 2268 2331 2379 2412 2457 2479 2548 2562 2613 2646 2814 2886 2989 2997 3108 3172 3276 3283 3294 3367 3484 3618 3626 3822 3843 3969 3996 4087 4212 4221 4329 4514 4662 4758 4914 4941 4958 5124 5226 5292 5427 5439 5551 5628 5733 5772 5978 5994 6097 6566 6588 6734 6771 6993 7137 7236 7252 7371 7437 7644 7686 7839 7938 8174 8442 8658 8967 9028 9324 9516 9828 9849 9882 9916 10101 10452 10854 10878 11102 11466 11529 11956 11988 12194 12261 12663 12987 13132 13468 13542 13986 14274 14742 14874 15372 15678 15799 15876 16317 16348 16653 16884 17199 17316 17353 17934 18291 19698 19764 20202 20313 20979 21411 21708 21756 22204 22311 22932 23058 23517 23569 24388 24522 25326 25974 26901 27084 27972 28548 28609 29341 29484 29547 29748 30303 31356 31598 32227 32634 33306 34398 34587 34706 35868 36582 36783 37989 38857 38961 39396 40404 40626 41958 42679 42822 44622 46116 47034 47138 47397 48951 49044 49959 50652 51597 51948 52059 53131 53802 54873 57218 58682 59094 60606 60939 63196 64233 64454 65268 66612 66933 68796 69174 69412 70551 70707 73164 73566 75978 77714 77922 80703 81252 83916 85358 85644 85827 88023 88641 89244 90909 94068 94276 94794 96681 97902 99918 103194 104118 106262 107604 109746 110349 110593 114436 116571 117364 118188 121212 121471 121878 128037 128466 128908 133866 138348 141102 141414 142191 146853 147132 149877 151219 151956 155428 155844 156177 159393 161406 164619 170716 171654 176046 177282 181818 182817 189588 193362 195804 199836 200263 200799 205387 206388 208236 212121 212524 219492 220698 221186 225589 233142 242109 242942 243756 256074 256932 257481 264069 265923 267732 272727 282204 282828 284382 290043 293706 299754 302438 312354 318786 322812 329238 331047 331779 343308 349713 352092 354564 363636 364413 365634 371917 384111 386724 400526 401598 410774 424242 426573 441396 442372 449631 451178 453657 466284 468531 478179 484218 485884 493857 512148 514962 528138 531846 545454 568764 580086 587412 599508 600789 604876 616161 624708 636363 637572 658476 662094 663558 676767 699426 728826 731268 743834 768222 772443 792207 801052 803196 821548 848484 853146 870129 899262 902356 907314 937062 956358 968436 987714 995337 1029924 1049139 1056276 1058533 1063692 1090908 1093239 1115751 1152333 1160172 1201578 1232322 1272726 1279719 1324188 1327116 1353534 1360971 1398852 1405593 1434537 1437709 1457652 1487668 1536444 1544886 1579123 1584414 1706292 1740258 1798524 1802367 1814628 1848483 1874124 1909089 1912716 1965847 1975428 1990674 2030301 2098278 2117066 2186478 2231502 2304666 2317329 2376621 2403156 2464644 2545452 2559438 2603419 2610387 2707068 2721942 2811186 2869074 2875418 2986011 3089772 3147417 3158246 3168828 3175599 3279717 3347253 3456999 3480516 3604734 3696966 3818178 3931694 3981348 4060602 4082913 4196556 4234132 4303611 4313127 4372956 4463004 4609332 4634658 4737369 4753242 5118876 5206838 5220774 5407101 5443884 5545449 5622372 5738148 5750836 5897541 5972022 6090903 6294834 6316492 6351198 6559434 6694506 6913998 7209468 7393932 7409731 7636356 7810257 7863388 8121204 8165826 8607222 8626254 8958033 9269316 9474738 9506484 9526797 9839151 10041759 10413676 10441548 10814202 11090898 11795082 11944044 12181806 12248739 12589668 12702396 12939381 13118868 13389012 13760929 13827996 14212107 14819462 15620514 16221303 16331652 16636347 17214444 17252508 17692623 17916066 18272709 18949476 19053594 19678302 20083518 21628404 22181796 22229193 23430771 23590164 24363612 24497478 25878762 27521858 28424214 28580391 29638924 30125277 31241028 32442606 33272694 35385246 35832132 36545418 38107188 38818143 39356604 40167036 41282787 42636321 44458386 46861542 48994956 51757524 53077869 55043716 56848428 57160782 60250554 64885212 66545388 66687579 70292313 70770492 73090836 77636286 82565574 85272642 85741173 88916772 93723084 96326503 106155738 114321564 116454429 120501108 123848361 127908963 133375158 140584626 155272572 159233607 165131148 170545284 171482346 192653006 200062737 210876939 212311476 232908858 247696722 255817926 266750316 281169252 288979509 318467214 342964692 371545083 385306012 400125474 421753878 465817716 495393444 511635852 577959018 600188211 636934428 743090166 800250948 843507756 866938527 1114635249 1155918036 1200376422 1486180332 1733877054 2229270498 2400752844 2600815581 3467754108 4458540996 5201631162 7802446743 10403262324 15604893486 31209786972
• Sum of all divisors σ(n): 108285548448
• Sum of proper divisors (its aliquot sum) s(n): 77075761476
• 31209786972 is an abundant number, because the sum of its proper divisors (77075761476) is greater than itself. Its abundance is 45865974504

Bases of 31209786972

• Binary: 11101000100001111111000111001011100₂
• Hexadecimal: 0x7443F8E5C
• Base-36: EC5I1R0

Squares and roots of 31209786972

• 31209786972 squared (31209786972²) is 974050802837620928784
• 31209786972 cubed (31209786972³) is 30399918056467722294637423002048
• The square root of 31209786972 is 176662.9190633959
• The cube root of 31209786972 is 3148.4509717157

Scales and comparisons

• 31,209,786,972 seconds is equal to 992 years, 19 weeks, 3 days, 9 hours, 16 minutes, 12 seconds.
• To count from 1 to 31,209,786,972 would take you about one thousand, nine hundred eighty-four 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 31209786972 cubic inches would be around 262.4 feet tall.

Recreational maths with 31209786972

• 31209786972 backwards is 27968790213
• 31209786972 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 31209786972's digits is 54
• More coming soon!