Base | Representation |
---|---|
bin | 1000010101101… |
… | …00101100111001 |
3 | 11212121122002212 |
4 | 10022310230321 |
5 | 120401234134 |
6 | 10535104505 |
7 | 1506350456 |
oct | 412645471 |
9 | 155548085 |
10 | 69946169 |
11 | 36534657 |
12 | 1b512135 |
13 | 11650187 |
14 | 940a82d |
15 | 6219bce |
hex | 42b4b39 |
69946169 has 8 divisors (see below), whose sum is σ = 72300168. Its totient is φ = 67616640.
The previous prime is 69946127. The next prime is 69946171. The reversal of 69946169 is 96164996.
It is a happy number.
It can be written as a sum of positive squares in 4 ways, for example, as 21114025 + 48832144 = 4595^2 + 6988^2 .
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 69946169 - 212 = 69942073 is a prime.
It is a super-2 number, since 2×699461692 = 9784933115553122, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (69946189) 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 7 ways as a sum of consecutive naturals, for example, 212 + ... + 11829.
It is an arithmetic number, because the mean of its divisors is an integer number (9037521).
Almost surely, 269946169 is an apocalyptic number.
It is an amenable number.
69946169 is a deficient number, since it is larger than the sum of its proper divisors (2353999).
69946169 is a wasteful number, since it uses less digits than its factorization.
69946169 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12235.
The product of its digits is 629856, while the sum is 50.
The square root of 69946169 is about 8363.3826290563. The cubic root of 69946169 is about 412.0228586463.
The spelling of 69946169 in words is "sixty-nine million, nine hundred forty-six thousand, one hundred sixty-nine".
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