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11880305 = 523103307
BaseRepresentation
bin101101010100…
…011101110001
3211100120201022
4231110131301
511020132210
61102345225
7202660313
oct55243561
924316638
1011880305
116784938
123b8b215
1325cc688
1418137b3
15109a155
hexb54771

11880305 has 8 divisors (see below), whose sum is σ = 14876352. Its totient is φ = 9090928.

The previous prime is 11880289. The next prime is 11880307. The reversal of 11880305 is 50308811.

11880305 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 11880305 - 24 = 11880289 is a prime.

It is a super-2 number, since 2×118803052 = 282283293786050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11880307) 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 7 ways as a sum of consecutive naturals, for example, 51539 + ... + 51768.

It is an arithmetic number, because the mean of its divisors is an integer number (1859544).

Almost surely, 211880305 is an apocalyptic number.

It is an amenable number.

11880305 is a deficient number, since it is larger than the sum of its proper divisors (2996047).

11880305 is a wasteful number, since it uses less digits than its factorization.

11880305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103335.

The product of its (nonzero) digits is 960, while the sum is 26.

The square root of 11880305 is about 3446.7818323764. The cubic root of 11880305 is about 228.1791003234.

The spelling of 11880305 in words is "eleven million, eight hundred eighty thousand, three hundred five".

Divisors: 1 5 23 115 103307 516535 2376061 11880305