Base | Representation |
---|---|
bin | 10100000100101… |
… | …01101001100101 |
3 | 102201211211222010 |
4 | 22002111221211 |
5 | 321101311000 |
6 | 24413024433 |
7 | 4113151506 |
oct | 1202255145 |
9 | 381754863 |
10 | 168385125 |
11 | 8705a267 |
12 | 48485119 |
13 | 28b6828c |
14 | 18512bad |
15 | ebb1d50 |
hex | a095a65 |
168385125 has 32 divisors (see below), whose sum is σ = 294952320. Its totient is φ = 85075200.
The previous prime is 168385117. The next prime is 168385127. The reversal of 168385125 is 521583861.
It is not a de Polignac number, because 168385125 - 23 = 168385117 is a prime.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (168385127) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4692 + ... + 18941.
It is an arithmetic number, because the mean of its divisors is an integer number (9217260).
Almost surely, 2168385125 is an apocalyptic number.
168385125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
168385125 is a deficient number, since it is larger than the sum of its proper divisors (126567195).
168385125 is a wasteful number, since it uses less digits than its factorization.
168385125 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 23670 (or 23660 counting only the distinct ones).
The product of its digits is 57600, while the sum is 39.
The square root of 168385125 is about 12976.3294116634. The cubic root of 168385125 is about 552.2061526520.
It can be divided in two parts, 168 and 385125, that multiplied together give a triangular number (64701000 = T11375).
The spelling of 168385125 in words is "one hundred sixty-eight million, three hundred eighty-five thousand, one hundred twenty-five".
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