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11391369 = 311345193
BaseRepresentation
bin101011011101…
…000110001001
3210102202000120
4223131012021
510404010434
61044053453
7165552663
oct53350611
923382016
1011391369
116480560
123994289
13248ac72
141727533
151000349
hexadd189

11391369 has 8 divisors (see below), whose sum is σ = 16569312. Its totient is φ = 6903840.

The previous prime is 11391361. The next prime is 11391383. The reversal of 11391369 is 96319311.

It is a happy number.

11391369 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 not a de Polignac number, because 11391369 - 23 = 11391361 is a prime.

It is a super-2 number, since 2×113913692 = 259526575388322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 345193 = 11391369 / (1 + 1 + 3 + 9 + 1 + 3 + 6 + 9).

It is not an unprimeable number, because it can be changed into a prime (11391361) 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, 172564 + ... + 172629.

It is an arithmetic number, because the mean of its divisors is an integer number (2071164).

Almost surely, 211391369 is an apocalyptic number.

It is an amenable number.

11391369 is a deficient number, since it is larger than the sum of its proper divisors (5177943).

11391369 is a wasteful number, since it uses less digits than its factorization.

11391369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345207.

The product of its digits is 4374, while the sum is 33.

The square root of 11391369 is about 3375.1102204224. The cubic root of 11391369 is about 225.0048986588.

The spelling of 11391369 in words is "eleven million, three hundred ninety-one thousand, three hundred sixty-nine".

Divisors: 1 3 11 33 345193 1035579 3797123 11391369