Base | Representation |
---|---|
bin | 10010100111000011… |
… | …00111000001100001 |
3 | 221210022022022000122 |
4 | 21103201213001201 |
5 | 130430230112423 |
6 | 4331231130025 |
7 | 502410154511 |
oct | 112341470141 |
9 | 27708268018 |
10 | 9991254113 |
11 | 4267891105 |
12 | 1b2a073915 |
13 | c32c476a9 |
14 | 6aad27841 |
15 | 3d72318c8 |
hex | 253867061 |
9991254113 has 2 divisors, whose sum is σ = 9991254114. Its totient is φ = 9991254112.
The previous prime is 9991254079. The next prime is 9991254157. The reversal of 9991254113 is 3114521999.
It is an a-pointer prime, because the next prime (9991254157) can be obtained adding 9991254113 to its sum of digits (44).
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 8343543649 + 1647710464 = 91343^2 + 40592^2 .
It is a cyclic number.
It is not a de Polignac number, because 9991254113 - 222 = 9987059809 is a prime.
It is not a weakly prime, because it can be changed into another prime (9991254173) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4995627056 + 4995627057.
It is an arithmetic number, because the mean of its divisors is an integer number (4995627057).
Almost surely, 29991254113 is an apocalyptic number.
It is an amenable number.
9991254113 is a deficient number, since it is larger than the sum of its proper divisors (1).
9991254113 is an equidigital number, since it uses as much as digits as its factorization.
9991254113 is an evil number, because the sum of its binary digits is even.
The product of its digits is 87480, while the sum is 44.
The square root of 9991254113 is about 99956.2609994992. The cubic root of 9991254113 is about 2153.8064254270.
The spelling of 9991254113 in words is "nine billion, nine hundred ninety-one million, two hundred fifty-four thousand, one hundred thirteen".
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