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20084992 = 28671171
BaseRepresentation
bin100110010011…
…1100100000000
31101210102102121
41030213210000
520120204432
61554254024
7332501554
oct114474400
941712377
1020084992
1110379174
126887314
134213015
14294b864
151b6b197
hex1327900

20084992 has 36 divisors (see below), whose sum is σ = 40724656. Its totient is φ = 9884160.

The previous prime is 20084989. The next prime is 20085017. The reversal of 20084992 is 29948002.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16567 + ... + 17737.

Almost surely, 220084992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20084992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20362328).

20084992 is an abundant number, since it is smaller than the sum of its proper divisors (20639664).

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

20084992 is an equidigital number, since it uses as much as digits as its factorization.

20084992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1254 (or 1240 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 20084992 is about 4481.6282755267. The cubic root of 20084992 is about 271.8257245792.

The spelling of 20084992 in words is "twenty million, eighty-four thousand, nine hundred ninety-two".

Divisors: 1 2 4 8 16 32 64 67 128 134 256 268 536 1072 1171 2144 2342 4288 4684 8576 9368 17152 18736 37472 74944 78457 149888 156914 299776 313828 627656 1255312 2510624 5021248 10042496 20084992