Search a number
-
+
3101000281 is a prime number
BaseRepresentation
bin1011100011010101…
…1000001001011001
322000010002010200021
42320311120021121
522322324002111
61231413110441
7136563032101
oct27065301131
98003063607
103101000281
111351485455
12726628421
133a55b8412
14215bb8201
15132394d71
hexb8d58259

3101000281 has 2 divisors, whose sum is σ = 3101000282. Its totient is φ = 3101000280.

The previous prime is 3101000269. The next prime is 3101000321. The reversal of 3101000281 is 1820001013.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3100262400 + 737881 = 55680^2 + 859^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-3101000281 is a prime.

It is a super-2 number, since 2×31010002812 = 19232405485524157922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3101000681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1550500140 + 1550500141.

It is an arithmetic number, because the mean of its divisors is an integer number (1550500141).

Almost surely, 23101000281 is an apocalyptic number.

It is an amenable number.

3101000281 is a deficient number, since it is larger than the sum of its proper divisors (1).

3101000281 is an equidigital number, since it uses as much as digits as its factorization.

3101000281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 3101000281 is about 55686.6256923509. The cubic root of 3101000281 is about 1458.2565479361.

Adding to 3101000281 its reverse (1820001013), we get a palindrome (4921001294).

The spelling of 3101000281 in words is "three billion, one hundred one million, two hundred eighty-one", and thus it is an aban number.