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20000208 = 2433113441
BaseRepresentation
bin100110001001…
…0110111010000
31101122010010110
41030102313100
520110001313
61552401320
7331666434
oct114226720
941563113
1020000208
11103204a8
126846240
1341b3557
1429289c4
151b50ec3
hex1312dd0

20000208 has 40 divisors (see below), whose sum is σ = 53337856. Its totient is φ = 6451200.

The previous prime is 20000171. The next prime is 20000213. The reversal of 20000208 is 80200002.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 20000193 and 20000202.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5233 + ... + 8208.

Almost surely, 220000208 is an apocalyptic number.

It is an amenable number.

20000208 is an abundant number, since it is smaller than the sum of its proper divisors (33337648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20000208 is a wasteful number, since it uses less digits than its factorization.

20000208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13483 (or 13477 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 20000208 is about 4472.1592100461. The cubic root of 20000208 is about 271.4427026543.

The spelling of 20000208 in words is "twenty million, two hundred eight", and thus it is an aban number.

Divisors: 1 2 3 4 6 8 12 16 24 31 48 62 93 124 186 248 372 496 744 1488 13441 26882 40323 53764 80646 107528 161292 215056 322584 416671 645168 833342 1250013 1666684 2500026 3333368 5000052 6666736 10000104 20000208