Base | Representation |
---|---|
bin | 10100000001101… |
… | …11101000001011 |
3 | 102201010021200122 |
4 | 22000313220023 |
5 | 321002000021 |
6 | 24400453455 |
7 | 4106655644 |
oct | 1200675013 |
9 | 381107618 |
10 | 168000011 |
11 | 86916993 |
12 | 4831a28b |
13 | 28a61bba |
14 | 184526cb |
15 | eb37bab |
hex | a037a0b |
168000011 has 4 divisors (see below), whose sum is σ = 171907032. Its totient is φ = 164092992.
The previous prime is 167999999. The next prime is 168000061. The reversal of 168000011 is 110000861.
It is a happy number.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110000861 = 19 ⋅5789519.
It is a cyclic number.
It is not a de Polignac number, because 168000011 - 26 = 167999947 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (168000061) 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, 1953446 + ... + 1953531.
It is an arithmetic number, because the mean of its divisors is an integer number (42976758).
Almost surely, 2168000011 is an apocalyptic number.
168000011 is a deficient number, since it is larger than the sum of its proper divisors (3907021).
168000011 is an equidigital number, since it uses as much as digits as its factorization.
168000011 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3907020.
The product of its (nonzero) digits is 48, while the sum is 17.
The square root of 168000011 is about 12961.4818211499. The cubic root of 168000011 is about 551.7848473191.
Adding to 168000011 its reverse (110000861), we get a palindrome (278000872).
The spelling of 168000011 in words is "one hundred sixty-eight million, eleven", and thus it is an aban number.
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