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20076763 = 72868109
BaseRepresentation
bin100110010010…
…1100011011011
31101210000010211
41030211203123
520114424023
61554151551
7332435560
oct114454333
941700124
1020076763
1110372a73
1268825b7
13420c355
142948867
151b68a0d
hex13258db

20076763 has 4 divisors (see below), whose sum is σ = 22944880. Its totient is φ = 17208648.

The previous prime is 20076739. The next prime is 20076773. The reversal of 20076763 is 36767002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36767002 = 218383501.

It is a cyclic number.

It is not a de Polignac number, because 20076763 - 217 = 19945691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20076703) 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, 1434048 + ... + 1434061.

It is an arithmetic number, because the mean of its divisors is an integer number (5736220).

Almost surely, 220076763 is an apocalyptic number.

20076763 is a deficient number, since it is larger than the sum of its proper divisors (2868117).

20076763 is an equidigital number, since it uses as much as digits as its factorization.

20076763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2868116.

The product of its (nonzero) digits is 10584, while the sum is 31.

The square root of 20076763 is about 4480.7100999730. The cubic root of 20076763 is about 271.7885963685.

The spelling of 20076763 in words is "twenty million, seventy-six thousand, seven hundred sixty-three".

Divisors: 1 7 2868109 20076763