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20080683 = 337181587
BaseRepresentation
bin100110010011…
…0100000101011
31101210012112000
41030212200223
520120040213
61554222043
7332453160
oct114464053
941705460
1020080683
1110375a07
126884923
13421107c
14294a067
151b69c73
hex132682b

20080683 has 32 divisors (see below), whose sum is σ = 34245120. Its totient is φ = 11391840.

The previous prime is 20080681. The next prime is 20080691. The reversal of 20080683 is 38608002.

It is not a de Polignac number, because 20080683 - 21 = 20080681 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (20080681) 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 31 ways as a sum of consecutive naturals, for example, 33916 + ... + 34502.

It is an arithmetic number, because the mean of its divisors is an integer number (1070160).

Almost surely, 220080683 is an apocalyptic number.

20080683 is a deficient number, since it is larger than the sum of its proper divisors (14164437).

20080683 is a wasteful number, since it uses less digits than its factorization.

20080683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784 (or 778 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 20080683 is about 4481.1475092882. The cubic root of 20080683 is about 271.8062841795.

Adding to 20080683 its reverse (38608002), we get a palindrome (58688685).

The spelling of 20080683 in words is "twenty million, eighty thousand, six hundred eighty-three".

Divisors: 1 3 7 9 21 27 63 181 189 543 587 1267 1629 1761 3801 4109 4887 5283 11403 12327 15849 34209 36981 106247 110943 318741 743729 956223 2231187 2868669 6693561 20080683