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1823080069 is a prime number
BaseRepresentation
bin110110010101001…
…1111111010000101
311201001110001201001
41230222133322011
512213202030234
6500522533301
763114632146
oct15452377205
94631401631
101823080069
11856099048
1242a667231
13230911405
141341a3acd
15aa0b6d14
hex6ca9fe85

1823080069 has 2 divisors, whose sum is σ = 1823080070. Its totient is φ = 1823080068.

The previous prime is 1823080043. The next prime is 1823080093. The reversal of 1823080069 is 9600803281.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1366189444 + 456890625 = 36962^2 + 21375^2 .

It is an emirp because it is prime and its reverse (9600803281) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1823080069 - 25 = 1823080037 is a prime.

It is a super-2 number, since 2×18230800692 = 6647241875970089522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1823080019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 911540034 + 911540035.

It is an arithmetic number, because the mean of its divisors is an integer number (911540035).

Almost surely, 21823080069 is an apocalyptic number.

It is an amenable number.

1823080069 is a deficient number, since it is larger than the sum of its proper divisors (1).

1823080069 is an equidigital number, since it uses as much as digits as its factorization.

1823080069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 1823080069 is about 42697.5417208064. The cubic root of 1823080069 is about 1221.6175062736.

The spelling of 1823080069 in words is "one billion, eight hundred twenty-three million, eighty thousand, sixty-nine".