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20793425 = 522832939
BaseRepresentation
bin100111101010…
…0100001010001
31110010102012212
41033110201101
520310342200
62021401505
7341512142
oct117244121
943112185
1020793425
1110812454
126b69295
134400603
142a93ac9
151c5b035
hex13d4851

20793425 has 12 divisors (see below), whose sum is σ = 25883760. Its totient is φ = 16570320.

The previous prime is 20793419. The next prime is 20793433. The reversal of 20793425 is 52439702.

It is a happy number.

It is not a de Polignac number, because 20793425 - 26 = 20793361 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20793391 and 20793400.

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 11 ways as a sum of consecutive naturals, for example, 5606 + ... + 8544.

It is an arithmetic number, because the mean of its divisors is an integer number (2156980).

Almost surely, 220793425 is an apocalyptic number.

20793425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20793425 is a deficient number, since it is larger than the sum of its proper divisors (5090335).

20793425 is a wasteful number, since it uses less digits than its factorization.

20793425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3232 (or 3227 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 20793425 is about 4559.9808113631. The cubic root of 20793425 is about 274.9847925475.

The spelling of 20793425 in words is "twenty million, seven hundred ninety-three thousand, four hundred twenty-five".

Divisors: 1 5 25 283 1415 2939 7075 14695 73475 831737 4158685 20793425