Base | Representation |
---|---|
bin | 1000010101000… |
… | …10001011011001 |
3 | 11212110210000210 |
4 | 10022202023121 |
5 | 120341322142 |
6 | 10533321333 |
7 | 1505613330 |
oct | 412421331 |
9 | 155423023 |
10 | 69870297 |
11 | 36492652 |
12 | 1b496249 |
13 | 11624793 |
14 | 93cad17 |
15 | 620249c |
hex | 42a22d9 |
69870297 has 16 divisors (see below), whose sum is σ = 111098880. Its totient is φ = 38189712.
The previous prime is 69870259. The next prime is 69870299. The reversal of 69870297 is 79207896.
It is not a de Polignac number, because 69870297 - 27 = 69870169 is a prime.
It is not an unprimeable number, because it can be changed into a prime (69870299) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71847 + ... + 72812.
It is an arithmetic number, because the mean of its divisors is an integer number (6943680).
Almost surely, 269870297 is an apocalyptic number.
It is an amenable number.
69870297 is a deficient number, since it is larger than the sum of its proper divisors (41228583).
69870297 is a wasteful number, since it uses less digits than its factorization.
69870297 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 144692.
The product of its (nonzero) digits is 381024, while the sum is 48.
The square root of 69870297 is about 8358.8454346279. The cubic root of 69870297 is about 411.8738282860.
The spelling of 69870297 in words is "sixty-nine million, eight hundred seventy thousand, two hundred ninety-seven".
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