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302031442 = 2181834341
BaseRepresentation
bin10010000000001…
…010001001010010
3210001022210020201
4102000022021102
51104310001232
645545325414
710325140066
oct2200121122
9701283221
10302031442
11145541769
128519686a
134a75c63b
142c181aa6
151b7b0be7
hex1200a252

302031442 has 8 divisors (see below), whose sum is σ = 455550732. Its totient is φ = 150181200.

The previous prime is 302031427. The next prime is 302031451. The reversal of 302031442 is 244130203.

It can be written as a sum of positive squares in 2 ways, for example, as 301682161 + 349281 = 17369^2 + 591^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 416809 + ... + 417532.

Almost surely, 2302031442 is an apocalyptic number.

302031442 is a deficient number, since it is larger than the sum of its proper divisors (153519290).

302031442 is a wasteful number, since it uses less digits than its factorization.

302031442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 834524.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 302031442 is about 17379.0518153322. The cubic root of 302031442 is about 670.9405680439.

Adding to 302031442 its reverse (244130203), we get a palindrome (546161645).

The spelling of 302031442 in words is "three hundred two million, thirty-one thousand, four hundred forty-two".

Divisors: 1 2 181 362 834341 1668682 151015721 302031442