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11660369 = 71665767
BaseRepresentation
bin101100011110…
…110001010001
3210221102000112
4230132301101
510441112434
61053531105
7201053150
oct54366121
923842015
1011660369
116644676
123aa3a95
132553536
141797597
151054dce
hexb1ec51

11660369 has 4 divisors (see below), whose sum is σ = 13326144. Its totient is φ = 9994596.

The previous prime is 11660339. The next prime is 11660381. The reversal of 11660369 is 96306611.

11660369 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-11660369 is a prime.

It is a super-2 number, since 2×116603692 = 271928410432322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11660329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 832877 + ... + 832890.

It is an arithmetic number, because the mean of its divisors is an integer number (3331536).

Almost surely, 211660369 is an apocalyptic number.

It is an amenable number.

11660369 is a deficient number, since it is larger than the sum of its proper divisors (1665775).

11660369 is an equidigital number, since it uses as much as digits as its factorization.

11660369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1665774.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 11660369 is about 3414.7282468741. The cubic root of 11660369 is about 226.7622537541.

The spelling of 11660369 in words is "eleven million, six hundred sixty thousand, three hundred sixty-nine".

Divisors: 1 7 1665767 11660369