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20795272 = 2319136811
BaseRepresentation
bin100111101010…
…0111110001000
31110010111202021
41033110332020
520310422042
62021414224
7341520421
oct117247610
943114667
1020795272
1110813883
126b6a374
1344013c4
142a94648
151c5b867
hex13d4f88

20795272 has 16 divisors (see below), whose sum is σ = 41043600. Its totient is φ = 9850320.

The previous prime is 20795251. The next prime is 20795279. The reversal of 20795272 is 27259702.

It is not an unprimeable number, because it can be changed into a prime (20795279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68254 + ... + 68557.

It is an arithmetic number, because the mean of its divisors is an integer number (2565225).

Almost surely, 220795272 is an apocalyptic number.

It is an amenable number.

20795272 is a deficient number, since it is larger than the sum of its proper divisors (20248328).

20795272 is a wasteful number, since it uses less digits than its factorization.

20795272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136836 (or 136832 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 20795272 is about 4560.1833296481. The cubic root of 20795272 is about 274.9929342537.

The spelling of 20795272 in words is "twenty million, seven hundred ninety-five thousand, two hundred seventy-two".

Divisors: 1 2 4 8 19 38 76 152 136811 273622 547244 1094488 2599409 5198818 10397636 20795272