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20030084 = 2247106543
BaseRepresentation
bin100110001101…
…0001010000100
31101200122002222
41030122022010
520111430314
61553151512
7332152514
oct114321204
941618088
1020030084
1110340998
12685b598
1341c4029
142935844
151b59c8e
hex131a284

20030084 has 12 divisors (see below), whose sum is σ = 35798784. Its totient is φ = 9801864.

The previous prime is 20030081. The next prime is 20030089. The reversal of 20030084 is 48003002.

It is not an unprimeable number, because it can be changed into a prime (20030081) 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, 53084 + ... + 53459.

It is an arithmetic number, because the mean of its divisors is an integer number (2983232).

Almost surely, 220030084 is an apocalyptic number.

It is an amenable number.

20030084 is a deficient number, since it is larger than the sum of its proper divisors (15768700).

20030084 is a wasteful number, since it uses less digits than its factorization.

20030084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106594 (or 106592 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 20030084 is about 4475.4981845600. The cubic root of 20030084 is about 271.5777943748.

Adding to 20030084 its reverse (48003002), we get a palindrome (68033086).

The spelling of 20030084 in words is "twenty million, thirty thousand, eighty-four".

Divisors: 1 2 4 47 94 188 106543 213086 426172 5007521 10015042 20030084