Search a number
-
+
143104 = 281343
BaseRepresentation
bin100010111100000000
321021022011
4202330000
514034404
63022304
71134133
oct427400
9237264
10143104
1198575
126a994
13501a0
143a21a
152c604
hex22f00

143104 has 36 divisors (see below), whose sum is σ = 314776. Its totient is φ = 64512.

The previous prime is 143093. The next prime is 143107. The reversal of 143104 is 401341.

Adding to 143104 its reverse (401341), we get a palindrome (544445).

It is a hoax number, since the sum of its digits (13) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143107) 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, 3307 + ... + 3349.

2143104 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 143104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157388).

143104 is an abundant number, since it is smaller than the sum of its proper divisors (171672).

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

143104 is an equidigital number, since it uses as much as digits as its factorization.

143104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72 (or 58 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 143104 is about 378.2908933612. The cubic root of 143104 is about 52.3058893887.

The spelling of 143104 in words is "one hundred forty-three thousand, one hundred four", and thus it is an iban number.

Divisors: 1 2 4 8 13 16 26 32 43 52 64 86 104 128 172 208 256 344 416 559 688 832 1118 1376 1664 2236 2752 3328 4472 5504 8944 11008 17888 35776 71552 143104