Base | Representation |
---|---|
bin | 10001000011011… |
… | …110010010010000 |
3 | 201221101120011210 |
4 | 101003132102100 |
5 | 1041221420102 |
6 | 44220340120 |
7 | 10043002200 |
oct | 2103362220 |
9 | 657346153 |
10 | 286123152 |
11 | 137566617 |
12 | 7b9a4640 |
13 | 4737c753 |
14 | 2a000400 |
15 | 1a1bc36c |
hex | 110de490 |
286123152 has 120 divisors (see below), whose sum is σ = 865123200. Its totient is φ = 81247488.
The previous prime is 286123129. The next prime is 286123177. The reversal of 286123152 is 251321682.
It is a super-2 number, since 2×2861231522 = 163732916220830208, which contains 22 as substring.
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 23 ways as a sum of consecutive naturals, for example, 561874 + ... + 562382.
It is an arithmetic number, because the mean of its divisors is an integer number (7209360).
Almost surely, 2286123152 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 286123152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (432561600).
286123152 is an abundant number, since it is smaller than the sum of its proper divisors (579000048).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
286123152 is a wasteful number, since it uses less digits than its factorization.
286123152 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 773 (or 760 counting only the distinct ones).
The product of its digits is 5760, while the sum is 30.
The square root of 286123152 is about 16915.1751986197. The cubic root of 286123152 is about 658.9477815894.
The spelling of 286123152 in words is "two hundred eighty-six million, one hundred twenty-three thousand, one hundred fifty-two".
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