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20796115 = 54159223
BaseRepresentation
bin100111101010…
…1001011010011
31110010112220111
41033111023103
520310433430
62021422151
7341523034
oct117251323
943115814
1020796115
111081447a
126b6a957
1344018c2
142a94a8b
151c5bc2a
hex13d52d3

20796115 has 4 divisors (see below), whose sum is σ = 24955344. Its totient is φ = 16636888.

The previous prime is 20796077. The next prime is 20796179. The reversal of 20796115 is 51169702.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51169702 = 225584851.

It is a cyclic number.

It is not a de Polignac number, because 20796115 - 219 = 20271827 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian 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, 2079607 + ... + 2079616.

It is an arithmetic number, because the mean of its divisors is an integer number (6238836).

Almost surely, 220796115 is an apocalyptic number.

20796115 is a deficient number, since it is larger than the sum of its proper divisors (4159229).

20796115 is an equidigital number, since it uses as much as digits as its factorization.

20796115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4159228.

The product of its (nonzero) digits is 3780, while the sum is 31.

The square root of 20796115 is about 4560.2757592058. The cubic root of 20796115 is about 274.9966500969.

The spelling of 20796115 in words is "twenty million, seven hundred ninety-six thousand, one hundred fifteen".

Divisors: 1 5 4159223 20796115