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3101002081 is a prime number
BaseRepresentation
bin1011100011010101…
…1000100101100001
322000010002020010221
42320311120211201
522322324031311
61231413123041
7136563040252
oct27065304541
98003066127
103101002081
111351486841
12726629481
133a55b9198
14215bb8b29
15132395671
hexb8d58961

3101002081 has 2 divisors, whose sum is σ = 3101002082. Its totient is φ = 3101002080.

The previous prime is 3101002007. The next prime is 3101002109. The reversal of 3101002081 is 1802001013.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2896054225 + 204947856 = 53815^2 + 14316^2 .

It is an emirp because it is prime and its reverse (1802001013) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-3101002081 is a prime.

It is a super-2 number, since 2×31010020812 = 19232427812732661122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3101002481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1550501040 + 1550501041.

It is an arithmetic number, because the mean of its divisors is an integer number (1550501041).

Almost surely, 23101002081 is an apocalyptic number.

It is an amenable number.

3101002081 is a deficient number, since it is larger than the sum of its proper divisors (1).

3101002081 is an equidigital number, since it uses as much as digits as its factorization.

3101002081 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 3101002081 is about 55686.6418542185. The cubic root of 3101002081 is about 1458.2568300882.

Adding to 3101002081 its reverse (1802001013), we get a palindrome (4903003094).

The spelling of 3101002081 in words is "three billion, one hundred one million, two thousand, eighty-one".