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20132230 = 254149103
BaseRepresentation
bin100110011001…
…1000110000110
31101212211020011
41030303012012
520123212410
61555300434
7333056356
oct114630606
941784204
1020132230
1110400708
1268aa71a
13422b681
142960b66
151b7a18a
hex1333186

20132230 has 16 divisors (see below), whose sum is σ = 37122624. Its totient is φ = 7856320.

The previous prime is 20132219. The next prime is 20132243. The reversal of 20132230 is 3223102.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20132230.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 24142 + ... + 24961.

It is an arithmetic number, because the mean of its divisors is an integer number (2320164).

Almost surely, 220132230 is an apocalyptic number.

20132230 is a deficient number, since it is larger than the sum of its proper divisors (16990394).

20132230 is a wasteful number, since it uses less digits than its factorization.

20132230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49151.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 20132230 is about 4486.8953631659. The cubic root of 20132230 is about 272.0386605226.

Adding to 20132230 its reverse (3223102), we get a palindrome (23355332).

The spelling of 20132230 in words is "twenty million, one hundred thirty-two thousand, two hundred thirty".

Divisors: 1 2 5 10 41 82 205 410 49103 98206 245515 491030 2013223 4026446 10066115 20132230