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443142 = 23273517
BaseRepresentation
bin1101100001100000110
3211111212200
41230030012
5103140032
613255330
73523650
oct1541406
9744780
10443142
11282a37
12194546
1312691b
14b76d0
158b47c
hex6c306

443142 has 24 divisors (see below), whose sum is σ = 1097616. Its totient is φ = 126576.

The previous prime is 443129. The next prime is 443147. The reversal of 443142 is 241344.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 443142.

It is not an unprimeable number, because it can be changed into a prime (443147) by changing a digit.

443142 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1633 + ... + 1884.

It is an arithmetic number, because the mean of its divisors is an integer number (45734).

2443142 is an apocalyptic number.

443142 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

443142 is an abundant number, since it is smaller than the sum of its proper divisors (654474).

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

443142 is a wasteful number, since it uses less digits than its factorization.

443142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3532 (or 3529 counting only the distinct ones).

The product of its digits is 384, while the sum is 18.

The square root of 443142 is about 665.6891166303. The cubic root of 443142 is about 76.2396635635.

Adding to 443142 its reverse (241344), we get a palindrome (684486).

It can be divided in two parts, 443 and 142, that added together give a palindrome (585).

The spelling of 443142 in words is "four hundred forty-three thousand, one hundred forty-two", and thus it is an iban number.

Divisors: 1 2 3 6 7 9 14 18 21 42 63 126 3517 7034 10551 21102 24619 31653 49238 63306 73857 147714 221571 443142