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302113243 = 1919979903
BaseRepresentation
bin10010000000011…
…110000111011011
3210001110221110101
4102000132013123
51104320110433
645551200231
710325630425
oct2200360733
9701427411
10302113243
11145598173
1285216077
134a78a943
142c1a3815
151b7ca07d
hex1201e1db

302113243 has 8 divisors (see below), whose sum is σ = 319616000. Its totient is φ = 284770728.

The previous prime is 302113241. The next prime is 302113249. The reversal of 302113243 is 342311203.

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 302113243 - 21 = 302113241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

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 302113243.

It is not an unprimeable number, because it can be changed into a prime (302113241) 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, 36171 + ... + 43732.

It is an arithmetic number, because the mean of its divisors is an integer number (39952000).

Almost surely, 2302113243 is an apocalyptic number.

302113243 is a deficient number, since it is larger than the sum of its proper divisors (17502757).

302113243 is a wasteful number, since it uses less digits than its factorization.

302113243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80121.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 302113243 is about 17381.4050927996. The cubic root of 302113243 is about 671.0011342055.

Adding to 302113243 its reverse (342311203), we get a palindrome (644424446).

The spelling of 302113243 in words is "three hundred two million, one hundred thirteen thousand, two hundred forty-three".

Divisors: 1 19 199 3781 79903 1518157 15900697 302113243