Base | Representation |
---|---|
bin | 1000001111000… |
… | …01001111000101 |
3 | 11210222121221201 |
4 | 10013201033011 |
5 | 120141030010 |
6 | 10504342501 |
7 | 1466112301 |
oct | 407411705 |
9 | 153877851 |
10 | 69080005 |
11 | 35aa2915 |
12 | 1b174a31 |
13 | 11408b57 |
14 | 9262d01 |
15 | 60e823a |
hex | 41e13c5 |
69080005 has 8 divisors (see below), whose sum is σ = 83751192. Its totient is φ = 54693888.
The previous prime is 69079981. The next prime is 69080047. The reversal of 69080005 is 50008096.
It can be written as a sum of positive squares in 4 ways, for example, as 13264164 + 55815841 = 3642^2 + 7471^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 69080005 - 217 = 68948933 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70732 + ... + 71701.
It is an arithmetic number, because the mean of its divisors is an integer number (10468899).
Almost surely, 269080005 is an apocalyptic number.
It is an amenable number.
69080005 is a deficient number, since it is larger than the sum of its proper divisors (14671187).
69080005 is a wasteful number, since it uses less digits than its factorization.
69080005 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 142535.
The product of its (nonzero) digits is 2160, while the sum is 28.
The square root of 69080005 is about 8311.4382028624. The cubic root of 69080005 is about 410.3150562728.
The spelling of 69080005 in words is "sixty-nine million, eighty thousand, five".
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