Base | Representation |
---|---|
bin | 100000100011011011… |
… | …1011011110010101001 |
3 | 20200110001000100222001 |
4 | 1001012313123302221 |
5 | 2121133023213414 |
6 | 52040535531001 |
7 | 5023252465636 |
oct | 1010667336251 |
9 | 220401010861 |
10 | 69908413609 |
11 | 27714527941 |
12 | 11670229a61 |
13 | 679148b618 |
14 | 35527b518d |
15 | 1c4256e074 |
hex | 1046ddbca9 |
69908413609 has 2 divisors, whose sum is σ = 69908413610. Its totient is φ = 69908413608.
The previous prime is 69908413583. The next prime is 69908413613. The reversal of 69908413609 is 90631480996.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 53974905625 + 15933507984 = 232325^2 + 126228^2 .
It is a cyclic number.
It is not a de Polignac number, because 69908413609 - 221 = 69906316457 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 69908413609.
It is not a weakly prime, because it can be changed into another prime (69908413009) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34954206804 + 34954206805.
It is an arithmetic number, because the mean of its divisors is an integer number (34954206805).
Almost surely, 269908413609 is an apocalyptic number.
It is an amenable number.
69908413609 is a deficient number, since it is larger than the sum of its proper divisors (1).
69908413609 is an equidigital number, since it uses as much as digits as its factorization.
69908413609 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 2519424, while the sum is 55.
The spelling of 69908413609 in words is "sixty-nine billion, nine hundred eight million, four hundred thirteen thousand, six hundred nine".
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