Base | Representation |
---|---|
bin | 1000001000001… |
… | …01101001101001 |
3 | 11202021221011212 |
4 | 10010011221221 |
5 | 114423234320 |
6 | 10433202505 |
7 | 1455345134 |
oct | 404055151 |
9 | 152257155 |
10 | 68180585 |
11 | 355390a0 |
12 | 1aa00435 |
13 | 11182655 |
14 | 90ab21b |
15 | 5ebb9c5 |
hex | 4105a69 |
68180585 has 32 divisors (see below), whose sum is σ = 92454912. Its totient is φ = 47839680.
The previous prime is 68180573. The next prime is 68180627. The reversal of 68180585 is 58508186.
It is not a de Polignac number, because 68180585 - 26 = 68180521 is a prime.
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, 300242 + ... + 300468.
It is an arithmetic number, because the mean of its divisors is an integer number (2889216).
Almost surely, 268180585 is an apocalyptic number.
It is an amenable number.
68180585 is a deficient number, since it is larger than the sum of its proper divisors (24274327).
68180585 is a wasteful number, since it uses less digits than its factorization.
68180585 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 413.
The product of its (nonzero) digits is 76800, while the sum is 41.
The square root of 68180585 is about 8257.1535652427. The cubic root of 68180585 is about 408.5265073310.
The spelling of 68180585 in words is "sixty-eight million, one hundred eighty thousand, five hundred eighty-five".
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