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11719069 = 17689357
BaseRepresentation
bin101100101101…
…000110011101
3211001101112121
4230231012131
511000002234
61055102541
7201416245
oct54550635
924041477
1011719069
11668478a
123b11a51
13257417b
1417b0b25
1510674b4
hexb2d19d

11719069 has 4 divisors (see below), whose sum is σ = 12408444. Its totient is φ = 11029696.

The previous prime is 11719051. The next prime is 11719079. The reversal of 11719069 is 96091711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96091711 = 479200609.

It can be written as a sum of positive squares in 2 ways, for example, as 10692900 + 1026169 = 3270^2 + 1013^2 .

It is a cyclic number.

It is not a de Polignac number, because 11719069 - 213 = 11710877 is a prime.

It is a super-2 number, since 2×117190692 = 274673156453522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11719009) 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 3 ways as a sum of consecutive naturals, for example, 344662 + ... + 344695.

It is an arithmetic number, because the mean of its divisors is an integer number (3102111).

Almost surely, 211719069 is an apocalyptic number.

It is an amenable number.

11719069 is a deficient number, since it is larger than the sum of its proper divisors (689375).

11719069 is an equidigital number, since it uses as much as digits as its factorization.

11719069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689374.

The product of its (nonzero) digits is 3402, while the sum is 34.

The square root of 11719069 is about 3423.3125770224. The cubic root of 11719069 is about 227.1421351039.

The spelling of 11719069 in words is "eleven million, seven hundred nineteen thousand, sixty-nine".

Divisors: 1 17 689357 11719069