Search a number
-
+
102443 = 1167139
BaseRepresentation
bin11001000000101011
312012112012
4121000223
511234233
62110135
7604445
oct310053
9165465
10102443
116aa70
124b34b
1337823
1429495
1520548
hex1902b

102443 has 8 divisors (see below), whose sum is σ = 114240. Its totient is φ = 91080.

The previous prime is 102437. The next prime is 102451. The reversal of 102443 is 344201.

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

It is not a de Polignac number, because 102443 - 210 = 101419 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 102443.

It is not an unprimeable number, because it can be changed into a prime (102433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 668 + ... + 806.

It is an arithmetic number, because the mean of its divisors is an integer number (14280).

2102443 is an apocalyptic number.

102443 is a deficient number, since it is larger than the sum of its proper divisors (11797).

102443 is a wasteful number, since it uses less digits than its factorization.

102443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 102443 is about 320.0671804481. The cubic root of 102443 is about 46.7908314764.

Adding to 102443 its reverse (344201), we get a palindrome (446644).

It can be divided in two parts, 102 and 443, that added together give a palindrome (545).

The spelling of 102443 in words is "one hundred two thousand, four hundred forty-three", and thus it is an iban number.

Divisors: 1 11 67 139 737 1529 9313 102443