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11913305 = 513071823
BaseRepresentation
bin101101011100…
…100001011001
3211102020222112
4231130201121
511022211210
61103202105
7203155445
oct55344131
924366875
1011913305
1167a7708
123ba6335
1326116c1
141821825
1510a4d05
hexb5c859

11913305 has 8 divisors (see below), whose sum is σ = 14314752. Its totient is φ = 9518128.

The previous prime is 11913301. The next prime is 11913313. The reversal of 11913305 is 50331911.

11913305 is digitally balanced in base 2, 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 11913305 - 22 = 11913301 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11913301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5624 + ... + 7446.

It is an arithmetic number, because the mean of its divisors is an integer number (1789344).

Almost surely, 211913305 is an apocalyptic number.

It is an amenable number.

11913305 is a deficient number, since it is larger than the sum of its proper divisors (2401447).

11913305 is a wasteful number, since it uses less digits than its factorization.

11913305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3135.

The product of its (nonzero) digits is 405, while the sum is 23.

The square root of 11913305 is about 3451.5655868026. The cubic root of 11913305 is about 228.3901765287.

The spelling of 11913305 in words is "eleven million, nine hundred thirteen thousand, three hundred five".

Divisors: 1 5 1307 1823 6535 9115 2382661 11913305