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10611869 is a prime number
BaseRepresentation
bin101000011110…
…110010011101
3201222010202012
4220132302131
510204034434
61015241005
7156125252
oct50366235
921863665
1010611869
115a98944
123679165
132277218
1415a3429
15de93ce
hexa1ec9d

10611869 has 2 divisors, whose sum is σ = 10611870. Its totient is φ = 10611868.

The previous prime is 10611847. The next prime is 10611871. The reversal of 10611869 is 96811601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7496644 + 3115225 = 2738^2 + 1765^2 .

It is a cyclic number.

It is not a de Polignac number, because 10611869 - 220 = 9563293 is a prime.

It is a super-2 number, since 2×106118692 = 225223527346322, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 10611871, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10611829) 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 as a sum of consecutive naturals, namely, 5305934 + 5305935.

It is an arithmetic number, because the mean of its divisors is an integer number (5305935).

Almost surely, 210611869 is an apocalyptic number.

It is an amenable number.

10611869 is a deficient number, since it is larger than the sum of its proper divisors (1).

10611869 is an equidigital number, since it uses as much as digits as its factorization.

10611869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 10611869 is about 3257.5863764450. The cubic root of 10611869 is about 219.7508819283.

The spelling of 10611869 in words is "ten million, six hundred eleven thousand, eight hundred sixty-nine".