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302442 = 23719379
BaseRepresentation
bin1001001110101101010
3120100212120
41021311222
534134232
610252110
72366520
oct1116552
9510776
10302442
11197258
12127036
13a787a
147c310
155e92c
hex49d6a

302442 has 32 divisors (see below), whose sum is σ = 729600. Its totient is φ = 81648.

The previous prime is 302429. The next prime is 302443. The reversal of 302442 is 244203.

It is a happy number.

302442 is nontrivially palindromic in base 13.

302442 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (302443) by changing a digit.

302442 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 15 ways as a sum of consecutive naturals, for example, 609 + ... + 987.

It is an arithmetic number, because the mean of its divisors is an integer number (22800).

2302442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 302442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (364800).

302442 is an abundant number, since it is smaller than the sum of its proper divisors (427158).

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

302442 is a wasteful number, since it uses less digits than its factorization.

302442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410.

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 302442 is about 549.9472701996. The cubic root of 302442 is about 67.1244438503.

Adding to 302442 its reverse (244203), we get a palindrome (546645).

The spelling of 302442 in words is "three hundred two thousand, four hundred forty-two", and thus it is an iban number.

Divisors: 1 2 3 6 7 14 19 21 38 42 57 114 133 266 379 399 758 798 1137 2274 2653 5306 7201 7959 14402 15918 21603 43206 50407 100814 151221 302442