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2102141287 is a prime number
BaseRepresentation
bin111110101001100…
…0010000101100111
312102111112211201201
41331103002011213
513301122010122
6544332103331
7103043622541
oct17523020547
95374484651
102102141287
11989670954
124a8004b47
1327668a6ac
1415d286691
15c483ba27
hex7d4c2167

2102141287 has 2 divisors, whose sum is σ = 2102141288. Its totient is φ = 2102141286.

The previous prime is 2102141269. The next prime is 2102141291. The reversal of 2102141287 is 7821412012.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2102141287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2102141207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051070643 + 1051070644.

It is an arithmetic number, because the mean of its divisors is an integer number (1051070644).

Almost surely, 22102141287 is an apocalyptic number.

2102141287 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102141287 is an equidigital number, since it uses as much as digits as its factorization.

2102141287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 2102141287 is about 45849.1143534965. The cubic root of 2102141287 is about 1281.0142691219.

Adding to 2102141287 its reverse (7821412012), we get a palindrome (9923553299).

The spelling of 2102141287 in words is "two billion, one hundred two million, one hundred forty-one thousand, two hundred eighty-seven".