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20928114 = 2322350551
BaseRepresentation
bin100111111010…
…1011001110010
31110101020222100
41033311121302
520324144424
62024321230
7342612624
oct117653162
943336870
1020928114
11108a4669
127013216
1344499cc
142acac14
151c85dc9
hex13f5672

20928114 has 24 divisors (see below), whose sum is σ = 47316672. Its totient is φ = 6672600.

The previous prime is 20928107. The next prime is 20928157. The reversal of 20928114 is 41182902.

It is a plaindrome in base 13.

It is a zygodrome in base 13.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24862 + ... + 25689.

It is an arithmetic number, because the mean of its divisors is an integer number (1971528).

Almost surely, 220928114 is an apocalyptic number.

20928114 is an abundant number, since it is smaller than the sum of its proper divisors (26388558).

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

20928114 is a wasteful number, since it uses less digits than its factorization.

20928114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50582 (or 50579 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 20928114 is about 4574.7255655394. The cubic root of 20928114 is about 275.5772513581.

The spelling of 20928114 in words is "twenty million, nine hundred twenty-eight thousand, one hundred fourteen".

Divisors: 1 2 3 6 9 18 23 46 69 138 207 414 50551 101102 151653 303306 454959 909918 1162673 2325346 3488019 6976038 10464057 20928114