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20894358 = 233482393
BaseRepresentation
bin100111110110…
…1001010010110
31110022112200010
41033231022112
520322104413
62023501050
7342412332
oct117551226
943275603
1020894358
1110881271
126bb7786
134437534
142abc7c2
151c7adc3
hex13ed296

20894358 has 8 divisors (see below), whose sum is σ = 41788728. Its totient is φ = 6964784.

The previous prime is 20894353. The next prime is 20894359. The reversal of 20894358 is 85349802.

It is a happy number.

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

20894358 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20894351) 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, 1741191 + ... + 1741202.

It is an arithmetic number, because the mean of its divisors is an integer number (5223591).

Almost surely, 220894358 is an apocalyptic number.

20894358 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.

20894358 is a wasteful number, since it uses less digits than its factorization.

20894358 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3482398.

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 20894358 is about 4571.0346749943. The cubic root of 20894358 is about 275.4290075235.

The spelling of 20894358 in words is "twenty million, eight hundred ninety-four thousand, three hundred fifty-eight".

Divisors: 1 2 3 6 3482393 6964786 10447179 20894358