Base | Representation |
---|---|
bin | 10100000110110… |
… | …11000001100100 |
3 | 102202101021202112 |
4 | 22003123001210 |
5 | 321134404114 |
6 | 24423100152 |
7 | 4115444120 |
oct | 1203330144 |
9 | 382337675 |
10 | 168669284 |
11 | 87233803 |
12 | 485a1658 |
13 | 28c37714 |
14 | 18588580 |
15 | ec1b13e |
hex | a0db064 |
168669284 has 24 divisors (see below), whose sum is σ = 342377280. Its totient is φ = 71207136.
The previous prime is 168669283. The next prime is 168669287. The reversal of 168669284 is 482966861.
It is a happy number.
It is not an unprimeable number, because it can be changed into a prime (168669283) by changing a digit.
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 7 ways as a sum of consecutive naturals, for example, 43079 + ... + 46830.
It is an arithmetic number, because the mean of its divisors is an integer number (14265720).
Almost surely, 2168669284 is an apocalyptic number.
168669284 is a gapful number since it is divisible by the number (14) formed by its first and last digit.
It is an amenable number.
168669284 is an abundant number, since it is smaller than the sum of its proper divisors (173707996).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
168669284 is a wasteful number, since it uses less digits than its factorization.
168669284 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 89987 (or 89985 counting only the distinct ones).
The product of its digits is 995328, while the sum is 50.
The square root of 168669284 is about 12987.2739248851. The cubic root of 168669284 is about 552.5166039931.
The spelling of 168669284 in words is "one hundred sixty-eight million, six hundred sixty-nine thousand, two hundred eighty-four".
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