Search a number
-
+
302242 = 2151121
BaseRepresentation
bin1001001110010100010
3120100121011
41021302202
534132432
610251134
72366113
oct1116242
9510534
10302242
11197096
12126aaa
13a7755
147c20a
155e847
hex49ca2

302242 has 4 divisors (see below), whose sum is σ = 453366. Its totient is φ = 151120.

The previous prime is 302227. The next prime is 302261. The reversal of 302242 is 242203.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 301401 + 841 = 549^2 + 29^2 .

It is a Smith number, since the sum of its digits (13) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a plaindrome in base 12.

It is a nialpdrome in base 13.

It is an unprimeable number.

302242 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 as a sum of consecutive naturals, namely, 75559 + ... + 75562.

2302242 is an apocalyptic number.

302242 is a deficient number, since it is larger than the sum of its proper divisors (151124).

302242 is a wasteful number, since it uses less digits than its factorization.

302242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151123.

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 302242 is about 549.7654045136. The cubic root of 302242 is about 67.1096444848.

Adding to 302242 its reverse (242203), we get a palindrome (544445).

The spelling of 302242 in words is "three hundred two thousand, two hundred forty-two", and thus it is an iban number.

Divisors: 1 2 151121 302242