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302212103 = 2910421107
BaseRepresentation
bin10010000000110…
…110010000000111
3210001122222001212
4102000312100013
51104331241403
645553242035
710326521564
oct2200662007
9701588055
10302212103
11145655476
128526331b
134a7c393b
142c1cb86b
151b7e94d8
hex12036407

302212103 has 4 divisors (see below), whose sum is σ = 312633240. Its totient is φ = 291790968.

The previous prime is 302212093. The next prime is 302212147. The reversal of 302212103 is 301212203.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 301212203 = 1731741111.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-302212103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (302212193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5210525 + ... + 5210582.

It is an arithmetic number, because the mean of its divisors is an integer number (78158310).

Almost surely, 2302212103 is an apocalyptic number.

302212103 is a deficient number, since it is larger than the sum of its proper divisors (10421137).

302212103 is a wasteful number, since it uses less digits than its factorization.

302212103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10421136.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 302212103 is about 17384.2487039274. The cubic root of 302212103 is about 671.0743164083.

Adding to 302212103 its reverse (301212203), we get a palindrome (603424306).

The spelling of 302212103 in words is "three hundred two million, two hundred twelve thousand, one hundred three".

Divisors: 1 29 10421107 302212103