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2171627113 is a prime number
BaseRepresentation
bin1000000101110000…
…0110011001101001
312121100022002100211
42001130012121221
513421414031423
6555253301121
7104546345245
oct20134063151
95540262324
102171627113
11a14910657
125073347a1
13287ba9176
141685b3425
15ca9b510d
hex81706669

2171627113 has 2 divisors, whose sum is σ = 2171627114. Its totient is φ = 2171627112.

The previous prime is 2171627111. The next prime is 2171627119. The reversal of 2171627113 is 3117261712.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2068157529 + 103469584 = 45477^2 + 10172^2 .

It is a cyclic number.

It is not a de Polignac number, because 2171627113 - 21 = 2171627111 is a prime.

Together with 2171627111, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2171627111) 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, 1085813556 + 1085813557.

It is an arithmetic number, because the mean of its divisors is an integer number (1085813557).

Almost surely, 22171627113 is an apocalyptic number.

It is an amenable number.

2171627113 is a deficient number, since it is larger than the sum of its proper divisors (1).

2171627113 is an equidigital number, since it uses as much as digits as its factorization.

2171627113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3528, while the sum is 31.

The square root of 2171627113 is about 46600.7200910029. The cubic root of 2171627113 is about 1294.9760957211.

Adding to 2171627113 its reverse (3117261712), we get a palindrome (5288888825).

The spelling of 2171627113 in words is "two billion, one hundred seventy-one million, six hundred twenty-seven thousand, one hundred thirteen".