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20573214 = 233428869
BaseRepresentation
bin100111001111…
…0110000011110
31102201020010220
41032132300132
520231320324
62012542210
7336604134
oct116366036
942636126
1020573214
1110681a62
126a81966
1343542cc
142a37754
151c15b79
hex139ec1e

20573214 has 8 divisors (see below), whose sum is σ = 41146440. Its totient is φ = 6857736.

The previous prime is 20573159. The next prime is 20573227. The reversal of 20573214 is 41237502.

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

20573214 is an admirable number.

It is a super-3 number, since 3×205732143 (a number of 23 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1714429 + ... + 1714440.

It is an arithmetic number, because the mean of its divisors is an integer number (5143305).

Almost surely, 220573214 is an apocalyptic number.

20573214 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.

20573214 is a wasteful number, since it uses less digits than its factorization.

20573214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3428874.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 20573214 is about 4535.7704968395. The cubic root of 20573214 is about 274.0106110583.

The spelling of 20573214 in words is "twenty million, five hundred seventy-three thousand, two hundred fourteen".

Divisors: 1 2 3 6 3428869 6857738 10286607 20573214