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124442 = 2431447
BaseRepresentation
bin11110011000011010
320022200222
4132120122
512440232
62400042
71025543
oct363032
9208628
10124442
118554a
1260022
1344846
14334ca
1526d12
hex1e61a

124442 has 8 divisors (see below), whose sum is σ = 191136. Its totient is φ = 60732.

The previous prime is 124433. The next prime is 124447. The reversal of 124442 is 244421.

124442 is nontrivially palindromic in base 6.

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

It is a super-2 number, since 2×1244422 = 30971622728, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 124442.

It is not an unprimeable number, because it can be changed into a prime (124447) by changing a digit.

124442 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 3 ways as a sum of consecutive naturals, for example, 638 + ... + 809.

It is an arithmetic number, because the mean of its divisors is an integer number (23892).

2124442 is an apocalyptic number.

124442 is a deficient number, since it is larger than the sum of its proper divisors (66694).

124442 is a wasteful number, since it uses less digits than its factorization.

124442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1492.

The product of its digits is 256, while the sum is 17.

The square root of 124442 is about 352.7633767839. The cubic root of 124442 is about 49.9254890174.

Adding to 124442 its reverse (244421), we get a palindrome (368863).

The spelling of 124442 in words is "one hundred twenty-four thousand, four hundred forty-two", and thus it is an iban number.

Divisors: 1 2 43 86 1447 2894 62221 124442