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20028050 = 252757223
BaseRepresentation
bin100110001100…
…1101010010010
31101200112022122
41030121222102
520111344200
61553134242
7332143550
oct114315222
941615278
1020028050
111033a409
12685a382
1341c3123
142934bd0
151b59385
hex1319a92

20028050 has 24 divisors (see below), whose sum is σ = 42574656. Its totient is φ = 6866640.

The previous prime is 20028031. The next prime is 20028053. The reversal of 20028050 is 5082002.

It is a happy number.

It is a super-2 number, since 2×200280502 = 802245573605000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20028053) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 28262 + ... + 28961.

It is an arithmetic number, because the mean of its divisors is an integer number (1773944).

Almost surely, 220028050 is an apocalyptic number.

20028050 is an abundant number, since it is smaller than the sum of its proper divisors (22546606).

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

20028050 is a wasteful number, since it uses less digits than its factorization.

20028050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57242 (or 57237 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 20028050 is about 4475.2709415185. The cubic root of 20028050 is about 271.5686014040.

The spelling of 20028050 in words is "twenty million, twenty-eight thousand, fifty".

Divisors: 1 2 5 7 10 14 25 35 50 70 175 350 57223 114446 286115 400561 572230 801122 1430575 2002805 2861150 4005610 10014025 20028050