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4230647881 is a prime number
BaseRepresentation
bin1111110000101010…
…1001000001001001
3101220211201011212021
43330022221001021
532131021213011
61535445244441
7206560625245
oct37412510111
911824634767
104230647881
1118810aa409
129a0a03721
13525649855
142c1c33425
1519b635471
hexfc2a9049

4230647881 has 2 divisors, whose sum is σ = 4230647882. Its totient is φ = 4230647880.

The previous prime is 4230647873. The next prime is 4230647887. The reversal of 4230647881 is 1887460324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3029401600 + 1201246281 = 55040^2 + 34659^2 .

It is a cyclic number.

It is not a de Polignac number, because 4230647881 - 23 = 4230647873 is a prime.

It is a super-2 number, since 2×42306478812 = 35796762986019580322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4230647887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2115323940 + 2115323941.

It is an arithmetic number, because the mean of its divisors is an integer number (2115323941).

Almost surely, 24230647881 is an apocalyptic number.

It is an amenable number.

4230647881 is a deficient number, since it is larger than the sum of its proper divisors (1).

4230647881 is an equidigital number, since it uses as much as digits as its factorization.

4230647881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 258048, while the sum is 43.

The square root of 4230647881 is about 65043.4307290137. The cubic root of 4230647881 is about 1617.3435966644.

The spelling of 4230647881 in words is "four billion, two hundred thirty million, six hundred forty-seven thousand, eight hundred eighty-one".