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143146 = 2193767
BaseRepresentation
bin100010111100101010
321021100201
4202330222
514040041
63022414
71134223
oct427452
9237321
10143146
1198603
126aa0a
1350203
143a24a
152c631
hex22f2a

143146 has 8 divisors (see below), whose sum is σ = 226080. Its totient is φ = 67788.

The previous prime is 143141. The next prime is 143159. The reversal of 143146 is 641341.

It is a happy number.

143146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (143141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1846 + ... + 1921.

It is an arithmetic number, because the mean of its divisors is an integer number (28260).

2143146 is an apocalyptic number.

143146 is a deficient number, since it is larger than the sum of its proper divisors (82934).

143146 is a wasteful number, since it uses less digits than its factorization.

143146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3788.

The product of its digits is 288, while the sum is 19.

The square root of 143146 is about 378.3464021238. The cubic root of 143146 is about 52.3110060229.

Adding to 143146 its reverse (641341), we get a palindrome (784487).

It can be divided in two parts, 143 and 146, that added together give a square (289 = 172).

The spelling of 143146 in words is "one hundred forty-three thousand, one hundred forty-six".

Divisors: 1 2 19 38 3767 7534 71573 143146