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30285011657 is a prime number
BaseRepresentation
bin11100001101001000…
…001001101011001001
32220011121120222212102
4130031020021223021
5444010430333112
621525052523145
72121330231425
oct341510115311
986147528772
1030285011657
111193111055a
125a524804b5
132b18445954
141674239b85
15bc3b76bc2
hex70d209ac9

30285011657 has 2 divisors, whose sum is σ = 30285011658. Its totient is φ = 30285011656.

The previous prime is 30285011569. The next prime is 30285011707. The reversal of 30285011657 is 75611058203.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23727089296 + 6557922361 = 154036^2 + 80981^2 .

It is a cyclic number.

It is not a de Polignac number, because 30285011657 - 218 = 30284749513 is a prime.

It is a super-3 number, since 3×302850116573 (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30285011657.

It is not a weakly prime, because it can be changed into another prime (30285011357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15142505828 + 15142505829.

It is an arithmetic number, because the mean of its divisors is an integer number (15142505829).

Almost surely, 230285011657 is an apocalyptic number.

It is an amenable number.

30285011657 is a deficient number, since it is larger than the sum of its proper divisors (1).

30285011657 is an equidigital number, since it uses as much as digits as its factorization.

30285011657 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50400, while the sum is 38.

The spelling of 30285011657 in words is "thirty billion, two hundred eighty-five million, eleven thousand, six hundred fifty-seven".