Search a number
-
+
7980228211 is a prime number
BaseRepresentation
bin1110110111010100…
…01001111001110011
3202121011012121002211
413123222021321303
5112320414300321
63355511552551
7401520551314
oct73352117163
922534177084
107980228211
1134256a362a
12166868b757
139a240c837
14559bdc60b
1531a8e20e1
hex1dba89e73

7980228211 has 2 divisors, whose sum is σ = 7980228212. Its totient is φ = 7980228210.

The previous prime is 7980228187. The next prime is 7980228241. The reversal of 7980228211 is 1128220897.

It is a weak prime.

It is an emirp because it is prime and its reverse (1128220897) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7980228211 - 27 = 7980228083 is a prime.

It is not a weakly prime, because it can be changed into another prime (7980228241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3990114105 + 3990114106.

It is an arithmetic number, because the mean of its divisors is an integer number (3990114106).

Almost surely, 27980228211 is an apocalyptic number.

7980228211 is a deficient number, since it is larger than the sum of its proper divisors (1).

7980228211 is an equidigital number, since it uses as much as digits as its factorization.

7980228211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 40.

The square root of 7980228211 is about 89332.1230633192. The cubic root of 7980228211 is about 1998.3509916761.

The spelling of 7980228211 in words is "seven billion, nine hundred eighty million, two hundred twenty-eight thousand, two hundred eleven".