Search a number
-
+
3842016181 is a prime number
BaseRepresentation
bin1110010100000000…
…1000001110110101
3100220202102122101121
43211000020032311
530332024004211
61433123423541
7164131412233
oct34500101665
910822378347
103842016181
1116a1799693
128b2824bb1
13492c88873
1428638b953
1517746a271
hexe50083b5

3842016181 has 2 divisors, whose sum is σ = 3842016182. Its totient is φ = 3842016180.

The previous prime is 3842016179. The next prime is 3842016187. The reversal of 3842016181 is 1816102483.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3728934225 + 113081956 = 61065^2 + 10634^2 .

It is a cyclic number.

It is not a de Polignac number, because 3842016181 - 21 = 3842016179 is a prime.

It is a super-2 number, since 2×38420161812 = 29522176670131649522, which contains 22 as substring.

Together with 3842016179, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3842016187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1921008090 + 1921008091.

It is an arithmetic number, because the mean of its divisors is an integer number (1921008091).

Almost surely, 23842016181 is an apocalyptic number.

It is an amenable number.

3842016181 is a deficient number, since it is larger than the sum of its proper divisors (1).

3842016181 is an equidigital number, since it uses as much as digits as its factorization.

3842016181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 3842016181 is about 61983.9993950052. Note that the first 3 decimals coincide. The cubic root of 3842016181 is about 1566.2210738545.

The spelling of 3842016181 in words is "three billion, eight hundred forty-two million, sixteen thousand, one hundred eighty-one".