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143828 = 2241877
BaseRepresentation
bin100011000111010100
321022021222
4203013110
514100303
63025512
71136216
oct430724
9238258
10143828
1199073
126b298
1350609
143a5b6
152c938
hex231d4

143828 has 12 divisors (see below), whose sum is σ = 258132. Its totient is φ = 70080.

The previous prime is 143827. The next prime is 143831. The reversal of 143828 is 828341.

It can be written as a sum of positive squares in 2 ways, for example, as 58564 + 85264 = 242^2 + 292^2 .

It is a junction number, because it is equal to n+sod(n) for n = 143797 and 143806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143821) 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, 275 + ... + 602.

It is an arithmetic number, because the mean of its divisors is an integer number (21511).

2143828 is an apocalyptic number.

It is an amenable number.

143828 is a deficient number, since it is larger than the sum of its proper divisors (114304).

143828 is a wasteful number, since it uses less digits than its factorization.

143828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922 (or 920 counting only the distinct ones).

The product of its digits is 1536, while the sum is 26.

The square root of 143828 is about 379.2466216066. The cubic root of 143828 is about 52.3939507031.

The spelling of 143828 in words is "one hundred forty-three thousand, eight hundred twenty-eight".

Divisors: 1 2 4 41 82 164 877 1754 3508 35957 71914 143828