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11869769 is a prime number
BaseRepresentation
bin101101010001…
…111001001001
3211100001021002
4231101321021
511014313034
61102224345
7202614512
oct55217111
924301232
1011869769
116777a2a
123b850b5
1325c7942
14180da09
151096e7e
hexb51e49

11869769 has 2 divisors, whose sum is σ = 11869770. Its totient is φ = 11869768.

The previous prime is 11869751. The next prime is 11869777. The reversal of 11869769 is 96796811.

11869769 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8761600 + 3108169 = 2960^2 + 1763^2 .

It is a cyclic number.

It is not a de Polignac number, because 11869769 - 212 = 11865673 is a prime.

It is a super-2 number, since 2×118697692 = 281782832226722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (11869789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5934884 + 5934885.

It is an arithmetic number, because the mean of its divisors is an integer number (5934885).

Almost surely, 211869769 is an apocalyptic number.

It is an amenable number.

11869769 is a deficient number, since it is larger than the sum of its proper divisors (1).

11869769 is an equidigital number, since it uses as much as digits as its factorization.

11869769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 47.

The square root of 11869769 is about 3445.2531111661. The cubic root of 11869769 is about 228.1116271388. Note that the first 3 decimals are identical.

The spelling of 11869769 in words is "eleven million, eight hundred sixty-nine thousand, seven hundred sixty-nine".