Search a number
-
+
25051097068844 = 227211232137236399
BaseRepresentation
bin1011011001000101010011…
…01111011111010100101100
310021200212021000201200020012
411230202221233133110230
511240414121322200334
6125140152022112352
75163611352504200
oct554425157372454
9107625230650205
1025051097068844
117a8912423a710
1229870a187b6b8
1310c94014b0482
1462869dd0cb00
152d69834049ce
hex16c8a9bdf52c

25051097068844 has 144 divisors (see below), whose sum is σ = 58079190758400. Its totient is φ = 9331404445440.

The previous prime is 25051097068841. The next prime is 25051097068849. The reversal of 25051097068844 is 44886079015052.

It is not an unprimeable number, because it can be changed into a prime (25051097068841) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 105851357 + ... + 106087755.

It is an arithmetic number, because the mean of its divisors is an integer number (403327713600).

Almost surely, 225051097068844 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25051097068844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29039595379200).

25051097068844 is an abundant number, since it is smaller than the sum of its proper divisors (33028093689556).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25051097068844 is a wasteful number, since it uses less digits than its factorization.

25051097068844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238588 (or 238579 counting only the distinct ones).

The product of its (nonzero) digits is 19353600, while the sum is 59.

The spelling of 25051097068844 in words is "twenty-five trillion, fifty-one billion, ninety-seven million, sixty-eight thousand, eight hundred forty-four".

Divisors: 1 2 4 7 11 14 22 23 28 44 46 49 77 92 98 154 161 196 253 308 322 506 539 644 1012 1078 1127 1771 2137 2156 2254 3542 4274 4508 7084 8548 12397 14959 23507 24794 29918 47014 49151 49588 59836 94028 98302 104713 164549 196604 209426 236399 329098 344057 418852 472798 540661 658196 688114 945596 1081322 1151843 1376228 1654793 2162644 2303686 2408399 2600389 3309586 3784627 4607372 4816798 5200778 5437177 6619172 7569254 9633596 10401556 10874354 11583551 15138508 18202723 21748708 23167102 26492389 36405446 38060239 46334204 52984778 59808947 72810892 76120478 105969556 119617894 127419061 152240956 239235788 254838122 266421673 418662629 505184663 509676244 532843346 837325258 1010369326 1065686692 1674650516 2020738652 2930638403 3536292641 5557031293 5861276806 7072585282 11114062586 11619247249 11722553612 14145170564 22228125172 23238494498 24754048487 38899219051 46476988996 49508096974 77798438102 81334730743 99016193948 127811719739 155596876204 162669461486 255623439478 272294533357 325338922972 511246878956 544589066714 569343115201 894682038173 1089178133428 1138686230402 1789364076346 2277372460804 3578728152692 6262774267211 12525548534422 25051097068844