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143008 = 2541109
BaseRepresentation
bin100010111010100000
321021011121
4202322200
514034013
63022024
71133635
oct427240
9237147
10143008
1198498
126a914
1350128
143a18c
152c58d
hex22ea0

143008 has 24 divisors (see below), whose sum is σ = 291060. Its totient is φ = 69120.

The previous prime is 142993. The next prime is 143053. The reversal of 143008 is 800341.

It can be written as a sum of positive squares in 2 ways, for example, as 138384 + 4624 = 372^2 + 68^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 142982 and 143000.

It is an unprimeable number.

143008 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1258 + ... + 1366.

2143008 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 143008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145530).

143008 is an abundant number, since it is smaller than the sum of its proper divisors (148052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

143008 is a wasteful number, since it uses less digits than its factorization.

143008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160 (or 152 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 143008 is about 378.1639855936. The cubic root of 143008 is about 52.2941904642.

Adding to 143008 its reverse (800341), we get a palindrome (943349).

The spelling of 143008 in words is "one hundred forty-three thousand, eight".

Divisors: 1 2 4 8 16 32 41 82 109 164 218 328 436 656 872 1312 1744 3488 4469 8938 17876 35752 71504 143008