Base | Representation |
---|---|
bin | 1000001110100… |
… | …01010101111001 |
3 | 11210212022122121 |
4 | 10013101111321 |
5 | 120131434110 |
6 | 10503121241 |
7 | 1465421431 |
oct | 407212571 |
9 | 153768577 |
10 | 69014905 |
11 | 35a58a13 |
12 | 1b143221 |
13 | 113b532b |
14 | 92472c1 |
15 | 60d3cda |
hex | 41d1579 |
69014905 has 4 divisors (see below), whose sum is σ = 82817892. Its totient is φ = 55211920.
The previous prime is 69014903. The next prime is 69014963. The reversal of 69014905 is 50941096.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 30735936 + 38278969 = 5544^2 + 6187^2 .
It is not a de Polignac number, because 69014905 - 21 = 69014903 is a prime.
It is a super-2 number, since 2×690149052 = 9526114224318050, which contains 22 as substring.
It is an alternating number because its digits alternate between even and odd.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (69014903) 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 3 ways as a sum of consecutive naturals, for example, 6901486 + ... + 6901495.
It is an arithmetic number, because the mean of its divisors is an integer number (20704473).
Almost surely, 269014905 is an apocalyptic number.
It is an amenable number.
69014905 is a deficient number, since it is larger than the sum of its proper divisors (13802987).
69014905 is a wasteful number, since it uses less digits than its factorization.
69014905 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13802986.
The product of its (nonzero) digits is 9720, while the sum is 34.
The square root of 69014905 is about 8307.5209900427. The cubic root of 69014905 is about 410.1861241001.
The spelling of 69014905 in words is "sixty-nine million, fourteen thousand, nine hundred five".
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