Base | Representation |
---|---|
bin | 100000010110101010… |
… | …1111010011001101001 |
3 | 20122100012020122102002 |
4 | 1000231111322121221 |
5 | 2114243412230224 |
6 | 51530241420345 |
7 | 5006532630122 |
oct | 1005525723151 |
9 | 218305218362 |
10 | 69480195689 |
11 | 27514839433 |
12 | 1157093a6b5 |
13 | 672384a238 |
14 | 3511987049 |
15 | 1c19b849ae |
hex | 102d57a669 |
69480195689 has 2 divisors, whose sum is σ = 69480195690. Its totient is φ = 69480195688.
The previous prime is 69480195677. The next prime is 69480195691. The reversal of 69480195689 is 98659108496.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 69230555689 + 249640000 = 263117^2 + 15800^2 .
It is a cyclic number.
It is not a de Polignac number, because 69480195689 - 224 = 69463418473 is a prime.
Together with 69480195691, it forms a pair of twin primes.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (69480195649) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34740097844 + 34740097845.
It is an arithmetic number, because the mean of its divisors is an integer number (34740097845).
Almost surely, 269480195689 is an apocalyptic number.
It is an amenable number.
69480195689 is a deficient number, since it is larger than the sum of its proper divisors (1).
69480195689 is an equidigital number, since it uses as much as digits as its factorization.
69480195689 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 33592320, while the sum is 65.
The spelling of 69480195689 in words is "sixty-nine billion, four hundred eighty million, one hundred ninety-five thousand, six hundred eighty-nine".
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