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20132394 = 234181839
BaseRepresentation
bin100110011001…
…1001000101010
31101212211110020
41030303020222
520123214034
61555301310
7333060012
oct114631052
941784406
1020132394
1110400847
1268aa836
13422b779
142960c42
151b7a249
hex133322a

20132394 has 16 divisors (see below), whose sum is σ = 41247360. Its totient is φ = 6547040.

The previous prime is 20132389. The next prime is 20132401. The reversal of 20132394 is 49323102.

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, 40674 + ... + 41165.

It is an arithmetic number, because the mean of its divisors is an integer number (2577960).

Almost surely, 220132394 is an apocalyptic number.

20132394 is an abundant number, since it is smaller than the sum of its proper divisors (21114966).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20132394 is a wasteful number, since it uses less digits than its factorization.

20132394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81885.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 20132394 is about 4486.9136385716. The cubic root of 20132394 is about 272.0393992091.

Adding to 20132394 its reverse (49323102), we get a palindrome (69455496).

The spelling of 20132394 in words is "twenty million, one hundred thirty-two thousand, three hundred ninety-four".

Divisors: 1 2 3 6 41 82 123 246 81839 163678 245517 491034 3355399 6710798 10066197 20132394