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4026102181 is a prime number
BaseRepresentation
bin1110111111111001…
…0111000110100101
3101101120211011220121
43233332113012211
531221140232211
61503301201541
7201525206143
oct35776270645
911346734817
104026102181
1117866a2182
129444002b1
134c21604aa
142a29ca593
151886ce271
hexeff971a5

4026102181 has 2 divisors, whose sum is σ = 4026102182. Its totient is φ = 4026102180.

The previous prime is 4026102089. The next prime is 4026102187. The reversal of 4026102181 is 1812016204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3427517025 + 598585156 = 58545^2 + 24466^2 .

It is a cyclic number.

It is not a de Polignac number, because 4026102181 - 225 = 3992547749 is a prime.

It is a super-4 number, since 4×40261021814 (a number of 40 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4026102187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2013051090 + 2013051091.

It is an arithmetic number, because the mean of its divisors is an integer number (2013051091).

Almost surely, 24026102181 is an apocalyptic number.

It is an amenable number.

4026102181 is a deficient number, since it is larger than the sum of its proper divisors (1).

4026102181 is an equidigital number, since it uses as much as digits as its factorization.

4026102181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 4026102181 is about 63451.5735108279. The cubic root of 4026102181 is about 1590.8464542227.

Adding to 4026102181 its reverse (1812016204), we get a palindrome (5838118385).

The spelling of 4026102181 in words is "four billion, twenty-six million, one hundred two thousand, one hundred eighty-one".