Search a number
-
+
143371 = 311461
BaseRepresentation
bin100011000000001011
321021200001
4203000023
514041441
63023431
71134664
oct430013
9237601
10143371
1198798
126ab77
1350347
143a36b
152c731
hex2300b

143371 has 4 divisors (see below), whose sum is σ = 144144. Its totient is φ = 142600.

The previous prime is 143357. The next prime is 143387. The reversal of 143371 is 173341.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 173341 = 724763.

It is a cyclic number.

It is not a de Polignac number, because 143371 - 27 = 143243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143971) 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, 81 + ... + 541.

It is an arithmetic number, because the mean of its divisors is an integer number (36036).

2143371 is an apocalyptic number.

143371 is a deficient number, since it is larger than the sum of its proper divisors (773).

143371 is an equidigital number, since it uses as much as digits as its factorization.

143371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772.

The product of its digits is 252, while the sum is 19.

The square root of 143371 is about 378.6436319285. The cubic root of 143371 is about 52.3383995348.

The spelling of 143371 in words is "one hundred forty-three thousand, three hundred seventy-one", and thus it is an iban number.

Divisors: 1 311 461 143371