Base | Representation |
---|---|
bin | 100000001010011001… |
… | …0000111001010101001 |
3 | 20121021110220221102110 |
4 | 1000110302013022221 |
5 | 2112422422020414 |
6 | 51421322152533 |
7 | 4663400436663 |
oct | 1002462071251 |
9 | 217243827373 |
10 | 69068157609 |
11 | 273231a10a0 |
12 | 11476952749 |
13 | 6689382519 |
14 | 34b2d6b533 |
15 | 1be38e4459 |
hex | 1014c872a9 |
69068157609 has 16 divisors (see below), whose sum is σ = 100708424640. Its totient is φ = 41757135360.
The previous prime is 69068157607. The next prime is 69068157649. The reversal of 69068157609 is 90675186096.
It is a happy number.
It is not a de Polignac number, because 69068157609 - 21 = 69068157607 is a prime.
It is not an unprimeable number, because it can be changed into a prime (69068157607) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2545152 + ... + 2572145.
It is an arithmetic number, because the mean of its divisors is an integer number (6294276540).
Almost surely, 269068157609 is an apocalyptic number.
It is an amenable number.
69068157609 is a deficient number, since it is larger than the sum of its proper divisors (31640267031).
69068157609 is a wasteful number, since it uses less digits than its factorization.
69068157609 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5117720.
The product of its (nonzero) digits is 4898880, while the sum is 57.
The spelling of 69068157609 in words is "sixty-nine billion, sixty-eight million, one hundred fifty-seven thousand, six hundred nine".
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