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302193229 = 13115320161
BaseRepresentation
bin10010000000110…
…001101001001101
3210001122000011211
4102000301221031
51104330140404
645553014421
710326412552
oct2200615115
9701560154
10302193229
11145642278
1285254411
134a7b8180
142c1c4a29
151b7e3b04
hex12031a4d

302193229 has 8 divisors (see below), whose sum is σ = 325737272. Its totient is φ = 278691840.

The previous prime is 302193223. The next prime is 302193257. The reversal of 302193229 is 922391203.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 52490025 + 249703204 = 7245^2 + 15802^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 302193229 - 25 = 302193197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 302193229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (302193223) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4909 + ... + 25069.

It is an arithmetic number, because the mean of its divisors is an integer number (40717159).

Almost surely, 2302193229 is an apocalyptic number.

It is an amenable number.

302193229 is a deficient number, since it is larger than the sum of its proper divisors (23544043).

302193229 is a wasteful number, since it uses less digits than its factorization.

302193229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21327.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 302193229 is about 17383.7058477184. The cubic root of 302193229 is about 671.0603459548.

The spelling of 302193229 in words is "three hundred two million, one hundred ninety-three thousand, two hundred twenty-nine".

Divisors: 1 13 1153 14989 20161 262093 23245633 302193229