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20038683 = 376115643
BaseRepresentation
bin100110001110…
…0010000011011
31101201001220110
41030130100123
520112214213
61553255403
7332216550
oct114342033
941631813
1020038683
11103473a5
126864563
1341c7c12
142938a27
151b5c5c3
hex131c41b

20038683 has 16 divisors (see below), whose sum is σ = 31037696. Its totient is φ = 11262240.

The previous prime is 20038661. The next prime is 20038687. The reversal of 20038683 is 38683002.

It is not a de Polignac number, because 20038683 - 25 = 20038651 is a prime.

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 20038683.

It is not an unprimeable number, because it can be changed into a prime (20038687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6541 + ... + 9102.

It is an arithmetic number, because the mean of its divisors is an integer number (1939856).

Almost surely, 220038683 is an apocalyptic number.

20038683 is a deficient number, since it is larger than the sum of its proper divisors (10999013).

20038683 is a wasteful number, since it uses less digits than its factorization.

20038683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15714.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 20038683 is about 4476.4587566513. The cubic root of 20038683 is about 271.6166519810.

It can be divided in two parts, 200 and 38683, that added together give a palindrome (38883).

The spelling of 20038683 in words is "twenty million, thirty-eight thousand, six hundred eighty-three".

Divisors: 1 3 7 21 61 183 427 1281 15643 46929 109501 328503 954223 2862669 6679561 20038683