Base | Representation |
---|---|
bin | 1000010101111… |
… | …10010000001101 |
3 | 11212200121202220 |
4 | 10022332100031 |
5 | 120404012133 |
6 | 10540005553 |
7 | 1506602520 |
oct | 412762015 |
9 | 155617686 |
10 | 69985293 |
11 | 36560a94 |
12 | 1b5308b9 |
13 | 11664c21 |
14 | 941abb7 |
15 | 62265b3 |
hex | 42be40d |
69985293 has 16 divisors (see below), whose sum is σ = 106849920. Its totient is φ = 39914496.
The previous prime is 69985291. The next prime is 69985301. The reversal of 69985293 is 39258996.
It is not a de Polignac number, because 69985293 - 21 = 69985291 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (69985291) 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, 9021 + ... + 14877.
It is an arithmetic number, because the mean of its divisors is an integer number (6678120).
Almost surely, 269985293 is an apocalyptic number.
It is an amenable number.
69985293 is a deficient number, since it is larger than the sum of its proper divisors (36864627).
69985293 is a wasteful number, since it uses less digits than its factorization.
69985293 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6436.
The product of its digits is 1049760, while the sum is 51.
The square root of 69985293 is about 8365.7213078132. The cubic root of 69985293 is about 412.0996652245.
The spelling of 69985293 in words is "sixty-nine million, nine hundred eighty-five thousand, two hundred ninety-three".
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