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11980783 is a prime number
BaseRepresentation
bin101101101100…
…111111101111
3211112200112201
4231230333233
511031341113
61104442331
7203556253
oct55547757
924480481
1011980783
116843381
1240193a7
132636329
14183c263
1510b9cdd
hexb6cfef

11980783 has 2 divisors, whose sum is σ = 11980784. Its totient is φ = 11980782.

The previous prime is 11980781. The next prime is 11980807. The reversal of 11980783 is 38708911.

It is a weak prime.

It is an emirp because it is prime and its reverse (38708911) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11980783 - 21 = 11980781 is a prime.

It is a super-2 number, since 2×119807832 = 287078322586178, which contains 22 as substring.

Together with 11980781, it forms a pair of twin primes.

It is equal to p786880 and since 11980783 and 786880 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11980781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5990391 + 5990392.

It is an arithmetic number, because the mean of its divisors is an integer number (5990392).

Almost surely, 211980783 is an apocalyptic number.

11980783 is a deficient number, since it is larger than the sum of its proper divisors (1).

11980783 is an equidigital number, since it uses as much as digits as its factorization.

11980783 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 37.

The square root of 11980783 is about 3461.3267687406. The cubic root of 11980783 is about 228.8205722512.

The spelling of 11980783 in words is "eleven million, nine hundred eighty thousand, seven hundred eighty-three".