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123242 = 278803
BaseRepresentation
bin11110000101101010
320021001112
4132011222
512420432
62350322
71022210
oct360552
9207045
10123242
1184659
125b3a2
1344132
1432cb0
15267b2
hex1e16a

123242 has 8 divisors (see below), whose sum is σ = 211296. Its totient is φ = 52812.

The previous prime is 123239. The next prime is 123259. The reversal of 123242 is 242321.

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

It is a Harshad number since it is a multiple of its sum of digits (14), and also a Moran number because the ratio is a prime number: 8803 = 123242 / (1 + 2 + 3 + 2 + 4 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4388 + ... + 4415.

It is an arithmetic number, because the mean of its divisors is an integer number (26412).

2123242 is an apocalyptic number.

123242 is a deficient number, since it is larger than the sum of its proper divisors (88054).

123242 is an equidigital number, since it uses as much as digits as its factorization.

123242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8812.

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

The square root of 123242 is about 351.0583997001. The cubic root of 123242 is about 49.7644924656.

Adding to 123242 its sum of digits (14), we get a triangular number (123256 = T496).

Adding to 123242 its reverse (242321), we get a palindrome (365563).

The spelling of 123242 in words is "one hundred twenty-three thousand, two hundred forty-two", and thus it is an iban number.

Divisors: 1 2 7 14 8803 17606 61621 123242