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20485006 = 210939371
BaseRepresentation
bin100111000100…
…1001110001110
31102112202010221
41032021032032
520221010011
62011021554
7336056023
oct116111616
942482127
1020485006
1110621763
126a3a8ba
134323109
142a1354a
151be9971
hex138938e

20485006 has 8 divisors (see below), whose sum is σ = 30758904. Its totient is φ = 10232040.

The previous prime is 20484931. The next prime is 20485007. The reversal of 20485006 is 60058402.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20485007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2500 + ... + 6871.

It is an arithmetic number, because the mean of its divisors is an integer number (3844863).

Almost surely, 220485006 is an apocalyptic number.

20485006 is a deficient number, since it is larger than the sum of its proper divisors (10273898).

20485006 is a wasteful number, since it uses less digits than its factorization.

20485006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10466.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 20485006 is about 4526.0364558850. The cubic root of 20485006 is about 273.6184416824.

The spelling of 20485006 in words is "twenty million, four hundred eighty-five thousand, six".

Divisors: 1 2 1093 2186 9371 18742 10242503 20485006