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20852526 = 233475421
BaseRepresentation
bin100111110001…
…0111100101110
31110020102021210
41033202330232
520314240101
62022535250
7342146352
oct117427456
943212253
1020852526
11108528a2
126b97526
134421496
142aab462
151c6d7d6
hex13e2f2e

20852526 has 8 divisors (see below), whose sum is σ = 41705064. Its totient is φ = 6950840.

The previous prime is 20852521. The next prime is 20852539. The reversal of 20852526 is 62525802.

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

20852526 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 20852493 and 20852502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20852521) 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, 1737705 + ... + 1737716.

It is an arithmetic number, because the mean of its divisors is an integer number (5213133).

Almost surely, 220852526 is an apocalyptic number.

20852526 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.

20852526 is a wasteful number, since it uses less digits than its factorization.

20852526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3475426.

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 20852526 is about 4566.4566131739. The cubic root of 20852526 is about 275.2450751923.

The spelling of 20852526 in words is "twenty million, eight hundred fifty-two thousand, five hundred twenty-six".

Divisors: 1 2 3 6 3475421 6950842 10426263 20852526