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102081271 is a prime number
BaseRepresentation
bin1100001010110…
…10001011110111
321010002021011211
412011122023313
5202113100041
614043542251
72346451015
oct605321367
9233067154
10102081271
1152693196
122a22a987
13181c1c26
14d7b38b5
158e66481
hex615a2f7

102081271 has 2 divisors, whose sum is σ = 102081272. Its totient is φ = 102081270.

The previous prime is 102081251. The next prime is 102081283. The reversal of 102081271 is 172180201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102081271 - 211 = 102079223 is a prime.

It is a super-3 number, since 3×1020812713 (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102081211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51040635 + 51040636.

It is an arithmetic number, because the mean of its divisors is an integer number (51040636).

Almost surely, 2102081271 is an apocalyptic number.

102081271 is a deficient number, since it is larger than the sum of its proper divisors (1).

102081271 is an equidigital number, since it uses as much as digits as its factorization.

102081271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 22.

The square root of 102081271 is about 10103.5276512711. The cubic root of 102081271 is about 467.3569329731.

The spelling of 102081271 in words is "one hundred two million, eighty-one thousand, two hundred seventy-one".