Search a number
-
+
28450843587608 = 23133761226953419
BaseRepresentation
bin1100111100000001110100…
…11011001111010000011000
310201201212121012121010210012
412132000322123033100120
512212114311424300413
6140302045340541052
75664335266221041
oct636007233172030
9121655535533705
1028450843587608
119079a31547562
123235b69b51788
1312b4b97c8a5c0
147050574638c8
153451121717a8
hex19e03a6cf418

28450843587608 has 128 divisors (see below), whose sum is σ = 59996279784000. Its totient is φ = 12561041848320.

The previous prime is 28450843587587. The next prime is 28450843587701. The reversal of 28450843587608 is 80678534805482.

It is a Smith number, since the sum of its digits (68) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 532571123 + ... + 532624541.

Almost surely, 228450843587608 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 28450843587608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29998139892000).

28450843587608 is an abundant number, since it is smaller than the sum of its proper divisors (31545436196392).

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

28450843587608 is a wasteful number, since it uses less digits than its factorization.

28450843587608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55805 (or 55801 counting only the distinct ones).

The product of its (nonzero) digits is 412876800, while the sum is 68.

The spelling of 28450843587608 in words is "twenty-eight trillion, four hundred fifty billion, eight hundred forty-three million, five hundred eighty-seven thousand, six hundred eight".

Divisors: 1 2 4 8 13 26 37 52 61 74 104 122 148 244 296 481 488 793 962 1586 1924 2257 2269 3172 3848 4514 4538 6344 9028 9076 18056 18152 29341 29497 53419 58682 58994 83953 106838 117364 117988 138409 167906 213676 234728 235976 276818 335812 427352 553636 671624 694447 1091389 1107272 1388894 1799317 1976503 2182778 2777788 3258559 3598634 3953006 4365556 5121133 5555576 6517118 7197268 7906012 8731112 10242266 13034236 14394536 15812024 20484532 25694539 26068472 40969064 42361267 51389078 66574729 84722534 102778156 120566683 121207711 133149458 169445068 205556312 241133366 242415422 266298916 338890136 482266732 484830844 532597832 964533464 969661688 1567366879 1575700243 3134733758 3151400486 4484685307 6269467516 6302800972 7393670371 8969370614 12538935032 12605601944 14787340742 17938741228 29574681484 35877482456 58300908991 59149362968 96117714823 116601817982 192235429646 233203635964 273565803727 384470859292 466407271928 547131607454 768941718584 1094263214908 2188526429816 3556355448451 7112710896902 14225421793804 28450843587608