Search a number
-
+
3075982981 is a prime number
BaseRepresentation
bin1011011101010111…
…1100011010000101
321221101000010101121
42313111330122011
522244422423411
61225120553541
7136140265261
oct26725743205
97841003347
103075982981
1113393485a5
1271a1828b1
133a0369396
142127450a1
151300a2571
hexb757c685

3075982981 has 2 divisors, whose sum is σ = 3075982982. Its totient is φ = 3075982980.

The previous prime is 3075982963. The next prime is 3075983021. The reversal of 3075982981 is 1892895703.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2175382881 + 900600100 = 46641^2 + 30010^2 .

It is a cyclic number.

It is not a de Polignac number, because 3075982981 - 211 = 3075980933 is a prime.

It is a super-2 number, since 2×30759829812 = 18923342598803292722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3075982381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1537991490 + 1537991491.

It is an arithmetic number, because the mean of its divisors is an integer number (1537991491).

Almost surely, 23075982981 is an apocalyptic number.

It is an amenable number.

3075982981 is a deficient number, since it is larger than the sum of its proper divisors (1).

3075982981 is an equidigital number, since it uses as much as digits as its factorization.

3075982981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1088640, while the sum is 52.

The square root of 3075982981 is about 55461.5450650268. The cubic root of 3075982981 is about 1454.3244630775.

The spelling of 3075982981 in words is "three billion, seventy-five million, nine hundred eighty-two thousand, nine hundred eighty-one".