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26855453105 = 513541976243
BaseRepresentation
bin11001000000101101…
…011011000110110001
32120022121021100222022
4121000231123012301
5414444443444410
620200501321225
71640334404435
oct310055330661
976277240868
1026855453105
1110431226448
125255a06215
1326bca70a70
14142a9769c5
15a72a31455
hex640b5b1b1

26855453105 has 16 divisors (see below), whose sum is σ = 34712368320. Its totient is φ = 19827799488.

The previous prime is 26855453083. The next prime is 26855453117. The reversal of 26855453105 is 50135455862.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 26855453105 - 26 = 26855453041 is a prime.

It is a super-2 number, since 2×268554531052 (a number of 22 digits) contains 22 as substring.

It is a Curzon 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, 314114 + ... + 390356.

It is an arithmetic number, because the mean of its divisors is an integer number (2169523020).

Almost surely, 226855453105 is an apocalyptic number.

It is an amenable number.

26855453105 is a deficient number, since it is larger than the sum of its proper divisors (7856915215).

26855453105 is a wasteful number, since it uses less digits than its factorization.

26855453105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81680.

The product of its (nonzero) digits is 720000, while the sum is 44.

The spelling of 26855453105 in words is "twenty-six billion, eight hundred fifty-five million, four hundred fifty-three thousand, one hundred five".

Divisors: 1 5 13 65 5419 27095 70447 76243 352235 381215 991159 4955795 413160817 2065804085 5371090621 26855453105