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302030205 = 3520135347
BaseRepresentation
bin10010000000001…
…001110101111101
3210001022201112220
4102000021311331
51104304431310
645545315553
710325133351
oct2200116575
9701281486
10302030205
11145540844
1285195bb9
134a75bbc9
142c181461
151b7b0670
hex12009d7d

302030205 has 8 divisors (see below), whose sum is σ = 483248352. Its totient is φ = 161082768.

The previous prime is 302030203. The next prime is 302030219. The reversal of 302030205 is 502030203.

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

It is not a de Polignac number, because 302030205 - 21 = 302030203 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 20135347 = 302030205 / (3 + 0 + 2 + 0 + 3 + 0 + 2 + 0 + 5).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (302030203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10067659 + ... + 10067688.

It is an arithmetic number, because the mean of its divisors is an integer number (60406044).

Almost surely, 2302030205 is an apocalyptic number.

It is an amenable number.

302030205 is a deficient number, since it is larger than the sum of its proper divisors (181218147).

302030205 is a wasteful number, since it uses less digits than its factorization.

302030205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20135355.

The product of its (nonzero) digits is 180, while the sum is 15.

The square root of 302030205 is about 17379.0162264727. The cubic root of 302030205 is about 670.9396520746.

Adding to 302030205 its reverse (502030203), we get a palindrome (804060408).

The spelling of 302030205 in words is "three hundred two million, thirty thousand, two hundred five".

Divisors: 1 3 5 15 20135347 60406041 100676735 302030205