Base | Representation |
---|---|
bin | 1000000111100… |
… | …11100000001111 |
3 | 11202011011012220 |
4 | 10003303200033 |
5 | 114413400010 |
6 | 10431430423 |
7 | 1454615340 |
oct | 403634017 |
9 | 152134186 |
10 | 68106255 |
11 | 35498268 |
12 | 1a985413 |
13 | 11157879 |
14 | 908c0c7 |
15 | 5ea4970 |
hex | 40f380f |
68106255 has 16 divisors (see below), whose sum is σ = 124537344. Its totient is φ = 31134240.
The previous prime is 68106223. The next prime is 68106257. The reversal of 68106255 is 55260186.
It is not a de Polignac number, because 68106255 - 25 = 68106223 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68106257) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 324211 + ... + 324420.
It is an arithmetic number, because the mean of its divisors is an integer number (7783584).
Almost surely, 268106255 is an apocalyptic number.
68106255 is a deficient number, since it is larger than the sum of its proper divisors (56431089).
68106255 is a wasteful number, since it uses less digits than its factorization.
68106255 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 648646.
The product of its (nonzero) digits is 14400, while the sum is 33.
The square root of 68106255 is about 8252.6513921285. The cubic root of 68106255 is about 408.3779957626.
The spelling of 68106255 in words is "sixty-eight million, one hundred six thousand, two hundred fifty-five".
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