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20085044 = 227717323
BaseRepresentation
bin100110010011…
…1100100110100
31101210102111112
41030213210310
520120210134
61554254152
7332501660
oct114474464
941712445
1020085044
1110379211
126887358
134213055
14294b8a0
151b6b1ce
hex1327934

20085044 has 12 divisors (see below), whose sum is σ = 40170144. Its totient is φ = 8607864.

The previous prime is 20085029. The next prime is 20085061. The reversal of 20085044 is 44058002.

20085044 is an admirable number.

It is a congruent number.

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, 358634 + ... + 358689.

It is an arithmetic number, because the mean of its divisors is an integer number (3347512).

Almost surely, 220085044 is an apocalyptic number.

It is an amenable number.

20085044 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20085044 is a wasteful number, since it uses less digits than its factorization.

20085044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717334 (or 717332 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 20085044 is about 4481.6340769858. The cubic root of 20085044 is about 271.8259591644.

The spelling of 20085044 in words is "twenty million, eighty-five thousand, forty-four".

Divisors: 1 2 4 7 14 28 717323 1434646 2869292 5021261 10042522 20085044