Base | Representation |
---|---|
bin | 1000010000110… |
… | …10010101101001 |
3 | 11211102111210101 |
4 | 10020122111221 |
5 | 120221021042 |
6 | 10513345401 |
7 | 1501105222 |
oct | 410322551 |
9 | 154374711 |
10 | 69313897 |
11 | 36142614 |
12 | 1b268261 |
13 | 1148b453 |
14 | 92c4249 |
15 | 61426b7 |
hex | 421a569 |
69313897 has 2 divisors, whose sum is σ = 69313898. Its totient is φ = 69313896.
The previous prime is 69313841. The next prime is 69313921. The reversal of 69313897 is 79831396.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 67420521 + 1893376 = 8211^2 + 1376^2 .
It is a cyclic number.
It is not a de Polignac number, because 69313897 - 211 = 69311849 is a prime.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (69313817) 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 as a sum of consecutive naturals, namely, 34656948 + 34656949.
It is an arithmetic number, because the mean of its divisors is an integer number (34656949).
Almost surely, 269313897 is an apocalyptic number.
It is an amenable number.
69313897 is a deficient number, since it is larger than the sum of its proper divisors (1).
69313897 is an equidigital number, since it uses as much as digits as its factorization.
69313897 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 244944, while the sum is 46.
The square root of 69313897 is about 8325.4968019933. The cubic root of 69313897 is about 410.7776180079. Note that the first 3 decimals are identical.
It can be divided in two parts, 6931389 and 7, that added together give a palindrome (6931396).
The spelling of 69313897 in words is "sixty-nine million, three hundred thirteen thousand, eight hundred ninety-seven".
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