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302042 = 21311617
BaseRepresentation
bin1001001101111011010
3120100022202
41021233122
534131132
610250202
72365406
oct1115732
9510282
10302042
11196a24
12126962
13a7630
147c106
155e762
hex49bda

302042 has 8 divisors (see below), whose sum is σ = 487956. Its totient is φ = 139392.

The previous prime is 302009. The next prime is 302053. The reversal of 302042 is 240203.

It can be written as a sum of positive squares in 2 ways, for example, as 279841 + 22201 = 529^2 + 149^2 .

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

It is a nialpdrome in base 13.

It is an unprimeable number.

302042 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5783 + ... + 5834.

2302042 is an apocalyptic number.

302042 is a deficient number, since it is larger than the sum of its proper divisors (185914).

302042 is a wasteful number, since it uses less digits than its factorization.

302042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11632.

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 302042 is about 549.5834786454. The cubic root of 302042 is about 67.0948385892.

Adding to 302042 its reverse (240203), we get a palindrome (542245).

The spelling of 302042 in words is "three hundred two thousand, forty-two", and thus it is an iban number.

Divisors: 1 2 13 26 11617 23234 151021 302042