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2805230569 is a prime number
BaseRepresentation
bin1010011100110100…
…0110101111101001
321020111112110220111
42213031012233221
521221114334234
61142205454321
7126342031531
oct24715065751
97214473814
102805230569
11120a530279
126635713a1
1335923bc5b
141c87c64c1
1511641e664
hexa7346be9

2805230569 has 2 divisors, whose sum is σ = 2805230570. Its totient is φ = 2805230568.

The previous prime is 2805230563. The next prime is 2805230609. The reversal of 2805230569 is 9650325082.

It is an a-pointer prime, because the next prime (2805230609) can be obtained adding 2805230569 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2737382400 + 67848169 = 52320^2 + 8237^2 .

It is a cyclic number.

It is not a de Polignac number, because 2805230569 - 211 = 2805228521 is a prime.

It is a super-2 number, since 2×28052305692 = 15738637090504127522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2805230563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1402615284 + 1402615285.

It is an arithmetic number, because the mean of its divisors is an integer number (1402615285).

Almost surely, 22805230569 is an apocalyptic number.

It is an amenable number.

2805230569 is a deficient number, since it is larger than the sum of its proper divisors (1).

2805230569 is an equidigital number, since it uses as much as digits as its factorization.

2805230569 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 2805230569 is about 52964.4273923546. The cubic root of 2805230569 is about 1410.3368524362.

The spelling of 2805230569 in words is "two billion, eight hundred five million, two hundred thirty thousand, five hundred sixty-nine".