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11780249 = 137112763
BaseRepresentation
bin101100111100…
…000010011001
3211011111110112
4230330002121
511003431444
61100254105
7202062515
oct54740231
924144415
1011780249
116716748
123b41335
132595c80
1417c9145
15107a69e
hexb3c099

11780249 has 8 divisors (see below), whose sum is σ = 12866112. Its totient is φ = 10720080.

The previous prime is 11780233. The next prime is 11780261. The reversal of 11780249 is 94208711.

11780249 is nontrivially palindromic in base 3.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11780249 - 24 = 11780233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11780299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5459 + ... + 7304.

It is an arithmetic number, because the mean of its divisors is an integer number (1608264).

Almost surely, 211780249 is an apocalyptic number.

It is an amenable number.

11780249 is a deficient number, since it is larger than the sum of its proper divisors (1085863).

11780249 is a wasteful number, since it uses less digits than its factorization.

11780249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12847.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 11780249 is about 3432.2367342595. The cubic root of 11780249 is about 227.5367183015.

The spelling of 11780249 in words is "eleven million, seven hundred eighty thousand, two hundred forty-nine".

Divisors: 1 13 71 923 12763 165919 906173 11780249