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20793411 = 324749157
BaseRepresentation
bin100111101010…
…0100001000011
31110010102012100
41033110201003
520310342121
62021401443
7341512122
oct117244103
943112170
1020793411
1110812441
126b69283
1344005c2
142a93ab9
151c5b026
hex13d4843

20793411 has 12 divisors (see below), whose sum is σ = 30674592. Its totient is φ = 13567056.

The previous prime is 20793407. The next prime is 20793419. The reversal of 20793411 is 11439702.

It is not a de Polignac number, because 20793411 - 22 = 20793407 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20793419) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 24156 + ... + 25001.

It is an arithmetic number, because the mean of its divisors is an integer number (2556216).

Almost surely, 220793411 is an apocalyptic number.

20793411 is a deficient number, since it is larger than the sum of its proper divisors (9881181).

20793411 is a wasteful number, since it uses less digits than its factorization.

20793411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49210 (or 49207 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 20793411 is about 4559.9792762687. The cubic root of 20793411 is about 274.9847308326.

The spelling of 20793411 in words is "twenty million, seven hundred ninety-three thousand, four hundred eleven".

Divisors: 1 3 9 47 141 423 49157 147471 442413 2310379 6931137 20793411