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102808007 is a prime number
BaseRepresentation
bin1100010000010…
…11100111000111
321011110012001222
412020023213013
5202304324012
614111310555
72355565541
oct610134707
9234405058
10102808007
115303a1a5
122a51b45b
13183b7953
14d922691
15905b972
hex620b9c7

102808007 has 2 divisors, whose sum is σ = 102808008. Its totient is φ = 102808006.

The previous prime is 102807989. The next prime is 102808009. The reversal of 102808007 is 700808201.

It is a strong prime.

It is an emirp because it is prime and its reverse (700808201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102808007 - 28 = 102807751 is a prime.

Together with 102808009, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102808009) 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, 51404003 + 51404004.

It is an arithmetic number, because the mean of its divisors is an integer number (51404004).

Almost surely, 2102808007 is an apocalyptic number.

102808007 is a deficient number, since it is larger than the sum of its proper divisors (1).

102808007 is an equidigital number, since it uses as much as digits as its factorization.

102808007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 896, while the sum is 26.

The square root of 102808007 is about 10139.4283369429. The cubic root of 102808007 is about 468.4633791021.

The spelling of 102808007 in words is "one hundred two million, eight hundred eight thousand, seven".