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11980611 = 327118749
BaseRepresentation
bin101101101100…
…111101000011
3211112200022100
4231230331003
511031334421
61104441443
7203555616
oct55547503
924480270
1011980611
116843235
124019283
132636226
14183c17d
1510b9c26
hexb6cf43

11980611 has 12 divisors (see below), whose sum is σ = 17550000. Its totient is φ = 7874160.

The previous prime is 11980609. The next prime is 11980613. The reversal of 11980611 is 11608911.

11980611 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11980609) and next prime (11980613).

It is not a de Polignac number, because 11980611 - 21 = 11980609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11980613) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8736 + ... + 10013.

It is an arithmetic number, because the mean of its divisors is an integer number (1462500).

Almost surely, 211980611 is an apocalyptic number.

11980611 is a deficient number, since it is larger than the sum of its proper divisors (5569389).

11980611 is a wasteful number, since it uses less digits than its factorization.

11980611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18826 (or 18823 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 27.

The square root of 11980611 is about 3461.3019226875. The cubic root of 11980611 is about 228.8194772386.

The spelling of 11980611 in words is "eleven million, nine hundred eighty thousand, six hundred eleven".

Divisors: 1 3 9 71 213 639 18749 56247 168741 1331179 3993537 11980611