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10008808991 is a prime number
BaseRepresentation
bin10010101001001001…
…00100111000011111
3221211112100011210022
421110210210320133
5130444223341431
64333055302355
7503012321066
oct112444447037
927745304708
1010008808991
114276791375
121b33b1a9bb
13c36782bac
146ad3b71dd
153d8a4d07b
hex254924e1f

10008808991 has 2 divisors, whose sum is σ = 10008808992. Its totient is φ = 10008808990.

The previous prime is 10008808969. The next prime is 10008809021. The reversal of 10008808991 is 19980880001.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (19980880001) is a distict prime. It is also a bemirp because it and its reverse can be mirrored producing other two distinct primes, 16680880001 and 10008808661.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10008808991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10008808921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5004404495 + 5004404496.

It is an arithmetic number, because the mean of its divisors is an integer number (5004404496).

Almost surely, 210008808991 is an apocalyptic number.

10008808991 is a deficient number, since it is larger than the sum of its proper divisors (1).

10008808991 is an equidigital number, since it uses as much as digits as its factorization.

10008808991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 44.

The spelling of 10008808991 in words is "ten billion, eight million, eight hundred eight thousand, nine hundred ninety-one".