Search a number
-
+
143011 = 1113001
BaseRepresentation
bin100010111010100011
321021011201
4202322203
514034021
63022031
71133641
oct427243
9237151
10143011
11984a0
126a917
135012b
143a191
152c591
hex22ea3

143011 has 4 divisors (see below), whose sum is σ = 156024. Its totient is φ = 130000.

The previous prime is 142993. The next prime is 143053. The reversal of 143011 is 110341.

It is a happy number.

143011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 143011 - 25 = 142979 is a prime.

It is a super-2 number, since 2×1430112 = 40904292242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (143111) 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, 6490 + ... + 6511.

It is an arithmetic number, because the mean of its divisors is an integer number (39006).

2143011 is an apocalyptic number.

143011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

143011 is a deficient number, since it is larger than the sum of its proper divisors (13013).

143011 is a wasteful number, since it uses less digits than its factorization.

143011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13012.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 143011 is about 378.1679521059. The cubic root of 143011 is about 52.2945561349.

Adding to 143011 its reverse (110341), we get a palindrome (253352).

It can be divided in two parts, 1430 and 11, that added together give a palindrome (1441).

The spelling of 143011 in words is "one hundred forty-three thousand, eleven", and thus it is an iban number.

Divisors: 1 11 13001 143011