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105987023808 = 2634317971607
BaseRepresentation
bin110001010110101010…
…0011010001111000000
3101010120102021122221020
41202231110122033000
53214030134230213
6120404553425440
710441312560261
oct1425524321700
9333512248836
10105987023808
1140a48a03766
121865aa0b280
139cc0cb4093
1451b6252968
152b54b5c923
hex18ad51a3c0

105987023808 has 112 divisors (see below), whose sum is σ = 281602427904. Its totient is φ = 35180907520.

The previous prime is 105987023749. The next prime is 105987023819. The reversal of 105987023808 is 808320789501.

105987023808 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1059870238082 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65952541 + ... + 65954147.

It is an arithmetic number, because the mean of its divisors is an integer number (2514307392).

Almost surely, 2105987023808 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 105987023808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140801213952).

105987023808 is an abundant number, since it is smaller than the sum of its proper divisors (175615404096).

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

105987023808 is a wasteful number, since it uses less digits than its factorization.

105987023808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2850 (or 2840 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 51.

The spelling of 105987023808 in words is "one hundred five billion, nine hundred eighty-seven million, twenty-three thousand, eight hundred eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 192 431 797 862 1293 1594 1607 1724 2391 2586 3188 3214 3448 4782 4821 5172 6376 6428 6896 9564 9642 10344 12752 12856 13792 19128 19284 20688 25504 25712 27584 38256 38568 41376 51008 51424 76512 77136 82752 102848 153024 154272 308544 343507 687014 692617 1030521 1280779 1374028 1385234 2061042 2077851 2561558 2748056 2770468 3842337 4122084 4155702 5123116 5496112 5540936 7684674 8244168 8311404 10246232 10992224 11081872 15369348 16488336 16622808 20492464 21984448 22163744 30738696 32976672 33245616 40984928 44327488 61477392 65953344 66491232 81969856 122954784 132982464 245909568 552015749 1104031498 1656047247 2208062996 3312094494 4416125992 6624188988 8832251984 13248377976 17664503968 26496755952 35329007936 52993511904 105987023808