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11980539 = 3223311867
BaseRepresentation
bin101101101100…
…111011111011
3211112200012200
4231230323323
511031334124
61104441243
7203555454
oct55547373
924480180
1011980539
11684317a
124019223
13263619c
14183c12b
1510b9bc9
hexb6cefb

11980539 has 24 divisors (see below), whose sum is σ = 18650112. Its totient is φ = 7389360.

The previous prime is 11980537. The next prime is 11980543. The reversal of 11980539 is 93508911.

It is a happy number.

11980539 is a `hidden beast` number, since 119 + 8 + 0 + 539 = 666.

11980539 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11980539 - 21 = 11980537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11980537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5484 + ... + 7350.

It is an arithmetic number, because the mean of its divisors is an integer number (777088).

Almost surely, 211980539 is an apocalyptic number.

11980539 is a deficient number, since it is larger than the sum of its proper divisors (6669573).

11980539 is a wasteful number, since it uses less digits than its factorization.

11980539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1927 (or 1924 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 36.

The square root of 11980539 is about 3461.2915219611. The cubic root of 11980539 is about 228.8190188581.

The spelling of 11980539 in words is "eleven million, nine hundred eighty thousand, five hundred thirty-nine".

Divisors: 1 3 9 23 31 69 93 207 279 713 1867 2139 5601 6417 16803 42941 57877 128823 173631 386469 520893 1331171 3993513 11980539