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302434223 = 7213474779
BaseRepresentation
bin10010000001101…
…100011110101111
3210002002020202112
4102001230132233
51104410343343
650002114235
710331435300
oct2201543657
9702066675
10302434223
11145797343
128534b97b
134a870a80
142c2487a7
151b840218
hex1206c7af

302434223 has 12 divisors (see below), whose sum is σ = 378874440. Its totient is φ = 239288112.

The previous prime is 302434219. The next prime is 302434241. The reversal of 302434223 is 322434203.

It is not a de Polignac number, because 302434223 - 22 = 302434219 is a prime.

It is a super-2 number, since 2×3024342232 = 182932918483227458, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (302434123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 236753 + ... + 238026.

It is an arithmetic number, because the mean of its divisors is an integer number (31572870).

Almost surely, 2302434223 is an apocalyptic number.

302434223 is a deficient number, since it is larger than the sum of its proper divisors (76440217).

302434223 is a wasteful number, since it uses less digits than its factorization.

302434223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474806 (or 474799 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 23.

The square root of 302434223 is about 17390.6360723235. The cubic root of 302434223 is about 671.2386849893.

Adding to 302434223 its reverse (322434203), we get a palindrome (624868426).

The spelling of 302434223 in words is "three hundred two million, four hundred thirty-four thousand, two hundred twenty-three".

Divisors: 1 7 13 49 91 637 474779 3323453 6172127 23264171 43204889 302434223