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20853058 = 213975011
BaseRepresentation
bin100111110001…
…1000101000010
31110020110000111
41033203011002
520314244213
62022541534
7342151042
oct117430502
943213014
1020853058
1110853236
126b978aa
1344217b5
142aab722
151c6da3d
hex13e3142

20853058 has 8 divisors (see below), whose sum is σ = 31505040. Its totient is φ = 10351380.

The previous prime is 20853047. The next prime is 20853061. The reversal of 20853058 is 85035802.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×208530583 (a number of 23 digits) contains 333 as substring.

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 3 ways as a sum of consecutive naturals, for example, 37228 + ... + 37783.

It is an arithmetic number, because the mean of its divisors is an integer number (3938130).

Almost surely, 220853058 is an apocalyptic number.

20853058 is a deficient number, since it is larger than the sum of its proper divisors (10651982).

20853058 is a wasteful number, since it uses less digits than its factorization.

20853058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75152.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 20853058 is about 4566.5148636570. The cubic root of 20853058 is about 275.2474159021.

The spelling of 20853058 in words is "twenty million, eight hundred fifty-three thousand, fifty-eight".

Divisors: 1 2 139 278 75011 150022 10426529 20853058