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BaseRepresentation
bin11101111001001010
320012221220
4131321022
512404232
62342510
71016655
oct357112
9205856
10122442
1183aa1
125aa36
1343968
143289c
152642c
hex1de4a

122442 has 8 divisors (see below), whose sum is σ = 244896. Its totient is φ = 40812.

The previous prime is 122401. The next prime is 122443. The reversal of 122442 is 244221.

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

It is not an unprimeable number, because it can be changed into a prime (122443) by changing a digit.

122442 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, 10198 + ... + 10209.

It is an arithmetic number, because the mean of its divisors is an integer number (30612).

2122442 is an apocalyptic number.

122442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

122442 is a wasteful number, since it uses less digits than its factorization.

122442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20412.

The product of its digits is 128, while the sum is 15.

The square root of 122442 is about 349.9171330472. The cubic root of 122442 is about 49.6565799875.

Adding to 122442 its reverse (244221), we get a palindrome (366663).

It can be divided in two parts, 12244 and 2, that added together give a triangular number (12246 = T156).

The spelling of 122442 in words is "one hundred twenty-two thousand, four hundred forty-two", and thus it is an iban number.

Divisors: 1 2 3 6 20407 40814 61221 122442