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124242 = 2320707
BaseRepresentation
bin11110010101010010
320022102120
4132111102
512433432
62355110
71025136
oct362522
9208376
10124242
1185388
125ba96
1344721
14333c6
1526c2c
hex1e552

124242 has 8 divisors (see below), whose sum is σ = 248496. Its totient is φ = 41412.

The previous prime is 124231. The next prime is 124247. The reversal of 124242 is 242421.

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

124242 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (124247) by changing a digit.

124242 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, 10348 + ... + 10359.

It is an arithmetic number, because the mean of its divisors is an integer number (31062).

2124242 is an apocalyptic number.

124242 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.

124242 is a wasteful number, since it uses less digits than its factorization.

124242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20712.

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

The square root of 124242 is about 352.4797866545. The cubic root of 124242 is about 49.8987283529.

Adding to 124242 its reverse (242421), we get a palindrome (366663).

The spelling of 124242 in words is "one hundred twenty-four thousand, two hundred forty-two", and thus it is an iban number.

Divisors: 1 2 3 6 20707 41414 62121 124242