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20302214 = 247215981
BaseRepresentation
bin100110101110…
…0100110000110
31102012110101212
41031130212012
520144132324
62003051422
7334365062
oct115344606
942173355
1020302214
1110507399
126970b72
13428ab5a
1429a6aa2
151bb070e
hex135c986

20302214 has 8 divisors (see below), whose sum is σ = 31101408. Its totient is φ = 9935080.

The previous prime is 20302211. The next prime is 20302223. The reversal of 20302214 is 41220302.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20302211) 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, 107897 + ... + 108084.

It is an arithmetic number, because the mean of its divisors is an integer number (3887676).

Almost surely, 220302214 is an apocalyptic number.

20302214 is a deficient number, since it is larger than the sum of its proper divisors (10799194).

20302214 is a wasteful number, since it uses less digits than its factorization.

20302214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216030.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 20302214 is about 4505.7978205863. The cubic root of 20302214 is about 272.8021573288.

Adding to 20302214 its reverse (41220302), we get a palindrome (61522516).

The spelling of 20302214 in words is "twenty million, three hundred two thousand, two hundred fourteen".

Divisors: 1 2 47 94 215981 431962 10151107 20302214