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11986745 = 55345233
BaseRepresentation
bin101101101110…
…011100111001
3211112222201112
4231232130321
511032033440
61104530105
7203612531
oct55563471
924488645
1011986745
116847901
124020935
132638c64
1418404c1
1510bb965
hexb6e739

11986745 has 8 divisors (see below), whose sum is σ = 14655816. Its totient is φ = 9408256.

The previous prime is 11986729. The next prime is 11986747. The reversal of 11986745 is 54768911.

It can be written as a sum of positive squares in 4 ways, for example, as 5555449 + 6431296 = 2357^2 + 2536^2 .

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 11986745 - 24 = 11986729 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11986747) 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, 22352 + ... + 22881.

It is an arithmetic number, because the mean of its divisors is an integer number (1831977).

Almost surely, 211986745 is an apocalyptic number.

It is an amenable number.

11986745 is a deficient number, since it is larger than the sum of its proper divisors (2669071).

11986745 is an equidigital number, since it uses as much as digits as its factorization.

11986745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45291.

The product of its digits is 60480, while the sum is 41.

The square root of 11986745 is about 3462.1878920706. The cubic root of 11986745 is about 228.8585219696.

The spelling of 11986745 in words is "eleven million, nine hundred eighty-six thousand, seven hundred forty-five".

Divisors: 1 5 53 265 45233 226165 2397349 11986745