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20000896 = 27156257
BaseRepresentation
bin100110001001…
…1000010000000
31101122011001221
41030103002000
520110012041
61552404424
7332001436
oct114230200
941564057
1020000896
1110320a73
126846714
1341b3966
142928d56
151b512d1
hex1313080

20000896 has 16 divisors (see below), whose sum is σ = 39845790. Its totient is φ = 10000384.

The previous prime is 20000879. The next prime is 20000909. The reversal of 20000896 is 69800002.

It can be written as a sum of positive squares in only one way, i.e., 19713600 + 287296 = 4440^2 + 536^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a self number, because there is not a number n which added to its sum of digits gives 20000896.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78001 + ... + 78256.

Almost surely, 220000896 is an apocalyptic number.

It is an amenable number.

20000896 is a deficient number, since it is larger than the sum of its proper divisors (19844894).

20000896 is an equidigital number, since it uses as much as digits as its factorization.

20000896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156271 (or 156259 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 20000896 is about 4472.2361297230. The cubic root of 20000896 is about 271.4458151293.

Adding to 20000896 its reverse (69800002), we get a palindrome (89800898).

The spelling of 20000896 in words is "twenty million, eight hundred ninety-six", and thus it is an aban number.

Divisors: 1 2 4 8 16 32 64 128 156257 312514 625028 1250056 2500112 5000224 10000448 20000896