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20085359 = 728310139
BaseRepresentation
bin100110010011…
…1101001101111
31101210102221012
41030213221233
520120212414
61554255435
7332502620
oct114475157
941712835
1020085359
1110379478
12688757b
134213238
14294ba47
151b6b33e
hex1327a6f

20085359 has 8 divisors (see below), whose sum is σ = 23038080. Its totient is φ = 17153496.

The previous prime is 20085353. The next prime is 20085383. The reversal of 20085359 is 95358002.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20085359 - 212 = 20081263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20085353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3089 + ... + 7050.

It is an arithmetic number, because the mean of its divisors is an integer number (2879760).

Almost surely, 220085359 is an apocalyptic number.

20085359 is a deficient number, since it is larger than the sum of its proper divisors (2952721).

20085359 is a wasteful number, since it uses less digits than its factorization.

20085359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10429.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 20085359 is about 4481.6692202794. The cubic root of 20085359 is about 271.8273802007.

The spelling of 20085359 in words is "twenty million, eighty-five thousand, three hundred fifty-nine".

Divisors: 1 7 283 1981 10139 70973 2869337 20085359