Search a number
-
+
2180221283 is a prime number
BaseRepresentation
bin1000000111110011…
…1000100101100011
312121221110201100102
42001330320211203
513431114040113
61000201413015
7105012401162
oct20174704543
95557421312
102180221283
11a19750579
1250a19a16b
132898c7b86
141697ad3d9
15cb611758
hex81f38963

2180221283 has 2 divisors, whose sum is σ = 2180221284. Its totient is φ = 2180221282.

The previous prime is 2180221259. The next prime is 2180221297. The reversal of 2180221283 is 3821220812.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2180221283 - 218 = 2179959139 is a prime.

It is not a weakly prime, because it can be changed into another prime (2180221213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1090110641 + 1090110642.

It is an arithmetic number, because the mean of its divisors is an integer number (1090110642).

Almost surely, 22180221283 is an apocalyptic number.

2180221283 is a deficient number, since it is larger than the sum of its proper divisors (1).

2180221283 is an equidigital number, since it uses as much as digits as its factorization.

2180221283 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 2180221283 is about 46692.8397401572. The cubic root of 2180221283 is about 1296.6821276616.

The spelling of 2180221283 in words is "two billion, one hundred eighty million, two hundred twenty-one thousand, two hundred eighty-three".