Base | Representation |
---|---|
bin | 111111111001010111… |
… | …010111010011101001 |
3 | 20120002102100200201001 |
4 | 333321113113103221 |
5 | 2111002142123001 |
6 | 51303530555001 |
7 | 4646113514002 |
oct | 777127272351 |
9 | 216072320631 |
10 | 68608161001 |
11 | 27107577906 |
12 | 11368898a61 |
13 | 6614c95693 |
14 | 346bc2a1a9 |
15 | 1bb832e001 |
hex | ff95d74e9 |
68608161001 has 4 divisors (see below), whose sum is σ = 69632163472. Its totient is φ = 67584158532.
The previous prime is 68608160993. The next prime is 68608161031. The reversal of 68608161001 is 10016180686.
It is a happy number.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10016180686 = 2 ⋅5008090343.
It is a cyclic number.
It is not a de Polignac number, because 68608161001 - 23 = 68608160993 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (68608161031) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 512001135 + ... + 512001268.
It is an arithmetic number, because the mean of its divisors is an integer number (17408040868).
Almost surely, 268608161001 is an apocalyptic number.
It is an amenable number.
68608161001 is a deficient number, since it is larger than the sum of its proper divisors (1024002471).
68608161001 is a wasteful number, since it uses less digits than its factorization.
68608161001 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1024002470.
The product of its (nonzero) digits is 13824, while the sum is 37.
The spelling of 68608161001 in words is "sixty-eight billion, six hundred eight million, one hundred sixty-one thousand, one".
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