Base | Representation |
---|---|
bin | 100000100100101000… |
… | …0010010110110000101 |
3 | 20200112211102012120112 |
4 | 1001021100102312011 |
5 | 2121223303004442 |
6 | 52044530442405 |
7 | 5024250212066 |
oct | 1011120226605 |
9 | 220484365515 |
10 | 69948484997 |
11 | 27735107096 |
12 | 11681733405 |
13 | 679987b7c1 |
14 | 3557c4656d |
15 | 1c45d37082 |
hex | 1049412d85 |
69948484997 has 2 divisors, whose sum is σ = 69948484998. Its totient is φ = 69948484996.
The previous prime is 69948484993. The next prime is 69948485021. The reversal of 69948484997 is 79948484996.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 50046611521 + 19901873476 = 223711^2 + 141074^2 .
It is a cyclic number.
It is not a de Polignac number, because 69948484997 - 22 = 69948484993 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (69948484993) 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 as a sum of consecutive naturals, namely, 34974242498 + 34974242499.
It is an arithmetic number, because the mean of its divisors is an integer number (34974242499).
Almost surely, 269948484997 is an apocalyptic number.
It is an amenable number.
69948484997 is a deficient number, since it is larger than the sum of its proper divisors (1).
69948484997 is an equidigital number, since it uses as much as digits as its factorization.
69948484997 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 1128701952, while the sum is 77.
Subtracting 69948484997 from its reverse (79948484996), we obtain a palindrome (9999999999).
The spelling of 69948484997 in words is "sixty-nine billion, nine hundred forty-eight million, four hundred eighty-four thousand, nine hundred ninety-seven".
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