Base | Representation |
---|---|
bin | 1110100111000… |
… | …00101100100000 |
3 | 22112121110002022 |
4 | 13103200230200 |
5 | 222333231133 |
6 | 20054441012 |
7 | 3015462461 |
oct | 723405440 |
9 | 275543068 |
10 | 122555168 |
11 | 631a756a |
12 | 35063168 |
13 | 1c50cc68 |
14 | 123c2d68 |
15 | ab5c998 |
hex | 74e0b20 |
122555168 has 54 divisors (see below), whose sum is σ = 257144139. Its totient is φ = 57488832.
The previous prime is 122555141. The next prime is 122555171. The reversal of 122555168 is 861555221.
It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.
It can be written as a sum of positive squares in only one way, i.e., 61277584 + 61277584 = 7828^2 + 7828^2 .
It is an ABA number since it can be written as A⋅BA, here for A=2, B=7828.
It is a Duffinian number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1189805 + ... + 1189907.
Almost surely, 2122555168 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 122555168
122555168 is an abundant number, since it is smaller than the sum of its proper divisors (134588971).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
122555168 is an equidigital number, since it uses as much as digits as its factorization.
122555168 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 254 (or 124 counting only the distinct ones).
The product of its digits is 24000, while the sum is 35.
The square root of 122555168 is about 11070.4637662566. The cubic root of 122555168 is about 496.7187377404.
The spelling of 122555168 in words is "one hundred twenty-two million, five hundred fifty-five thousand, one hundred sixty-eight".
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