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1064042269 = 1537769197
BaseRepresentation
bin111111011010111…
…111111100011101
32202011011221120221
4333122333330131
54134343323034
6253330041341
735240132023
oct7732777435
92664157527
101064042269
114a6695784
12258419251
1313c5a1014
14a145c713
1563631bb4
hex3f6bff1d

1064042269 has 4 divisors (see below), whose sum is σ = 1064126844. Its totient is φ = 1063957696.

The previous prime is 1064042251. The next prime is 1064042293. The reversal of 1064042269 is 9622404601.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1028484900 + 35557369 = 32070^2 + 5963^2 .

It is a cyclic number.

It is not a de Polignac number, because 1064042269 - 211 = 1064040221 is a prime.

It is a super-2 number, since 2×10640422692 = 2264371900437336722, 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 (1064042069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19222 + ... + 49975.

It is an arithmetic number, because the mean of its divisors is an integer number (266031711).

Almost surely, 21064042269 is an apocalyptic number.

It is an amenable number.

1064042269 is a deficient number, since it is larger than the sum of its proper divisors (84575).

1064042269 is an equidigital number, since it uses as much as digits as its factorization.

1064042269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84574.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 1064042269 is about 32619.6607738339. The cubic root of 1064042269 is about 1020.9072630677.

The spelling of 1064042269 in words is "one billion, sixty-four million, forty-two thousand, two hundred sixty-nine".

Divisors: 1 15377 69197 1064042269