Base | Representation |
---|---|
bin | 10010101001001001… |
… | …00100111000011111 |
3 | 221211112100011210022 |
4 | 21110210210320133 |
5 | 130444223341431 |
6 | 4333055302355 |
7 | 503012321066 |
oct | 112444447037 |
9 | 27745304708 |
10 | 10008808991 |
11 | 4276791375 |
12 | 1b33b1a9bb |
13 | c36782bac |
14 | 6ad3b71dd |
15 | 3d8a4d07b |
hex | 254924e1f |
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".
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