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124042 = 2109569
BaseRepresentation
bin11110010010001010
320022011011
4132102022
512432132
62354134
71024432
oct362212
9208134
10124042
1185216
125b94a
13445c9
14332c2
1526b47
hex1e48a

124042 has 8 divisors (see below), whose sum is σ = 188100. Its totient is φ = 61344.

The previous prime is 124021. The next prime is 124067. The reversal of 124042 is 240421.

It can be written as a sum of positive squares in 2 ways, for example, as 123201 + 841 = 351^2 + 29^2 .

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

It is an unprimeable number.

124042 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, 67 + ... + 502.

2124042 is an apocalyptic number.

124042 is a deficient number, since it is larger than the sum of its proper divisors (64058).

124042 is a wasteful number, since it uses less digits than its factorization.

124042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 124042 is about 352.1959681768. The cubic root of 124042 is about 49.8719389541.

Adding to 124042 its reverse (240421), we get a palindrome (364463).

The spelling of 124042 in words is "one hundred twenty-four thousand, forty-two", and thus it is an iban number.

Divisors: 1 2 109 218 569 1138 62021 124042