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20706196 = 227739507
BaseRepresentation
bin100111011111…
…1001110010100
31102221222120011
41032333032110
520300044241
62015450004
7340666630
oct116771624
942858504
1020706196
1110762965
126b26904
13439c9b4
142a6ddc0
151c40281
hex13bf394

20706196 has 12 divisors (see below), whose sum is σ = 41412448. Its totient is φ = 8874072.

The previous prime is 20706167. The next prime is 20706209. The reversal of 20706196 is 69160702.

20706196 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 369726 + ... + 369781.

Almost surely, 220706196 is an apocalyptic number.

It is an amenable number.

20706196 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20706196 is a wasteful number, since it uses less digits than its factorization.

20706196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739518 (or 739516 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 20706196 is about 4550.4061357202. The cubic root of 20706196 is about 274.5997306282.

Adding to 20706196 its reverse (69160702), we get a palindrome (89866898).

It can be divided in two parts, 20706 and 196, that added together give a palindrome (20902).

The spelling of 20706196 in words is "twenty million, seven hundred six thousand, one hundred ninety-six".

Divisors: 1 2 4 7 14 28 739507 1479014 2958028 5176549 10353098 20706196