Base | Representation |
---|---|
bin | 1000001110111… |
… | …10100001011010 |
3 | 11210222001201001 |
4 | 10013132201122 |
5 | 120140201030 |
6 | 10504215214 |
7 | 1466035012 |
oct | 407364132 |
9 | 153861631 |
10 | 69068890 |
11 | 35a95530 |
12 | 1b16a50a |
13 | 11403a87 |
14 | 925cc42 |
15 | 60e4cca |
hex | 41de85a |
69068890 has 32 divisors (see below), whose sum is σ = 136152576. Its totient is φ = 25018560.
The previous prime is 69068873. The next prime is 69068891. The reversal of 69068890 is 9886096.
It is a happy number.
It is a self number, because there is not a number n which added to its sum of digits gives 69068890.
It is not an unprimeable number, because it can be changed into a prime (69068891) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31159 + ... + 33301.
It is an arithmetic number, because the mean of its divisors is an integer number (4254768).
Almost surely, 269068890 is an apocalyptic number.
69068890 is a deficient number, since it is larger than the sum of its proper divisors (67083686).
69068890 is a wasteful number, since it uses less digits than its factorization.
69068890 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2454.
The product of its (nonzero) digits is 186624, while the sum is 46.
The square root of 69068890 is about 8310.7695191240. The cubic root of 69068890 is about 410.2930484744.
The spelling of 69068890 in words is "sixty-nine million, sixty-eight thousand, eight hundred ninety".
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