| Base | Representation |
|---|---|
| bin | 101010011011001001… |
| … | …0011111011010110000 |
| 3 | 22201011021101010201000 |
| 4 | 1110312102133122300 |
| 5 | 2443040403131120 |
| 6 | 105504135042000 |
| 7 | 6403445554242 |
| oct | 1246622373260 |
| 9 | 281137333630 |
| 10 | 91105130160 |
| 11 | 3570151a800 |
| 12 | 157a6b10300 |
| 13 | 878ba7b055 |
| 14 | 45a39b4092 |
| 15 | 25833c7990 |
| hex | 153649f6b0 |
91105130160 has 480 divisors, whose sum is σ = 351489378240. Its totient is φ = 21666078720.
The previous prime is 91105130159. The next prime is 91105130161. The reversal of 91105130160 is 6103150119.
91105130160 is a `hidden beast` number, since 91 + 1 + 0 + 513 + 0 + 1 + 60 = 666.
It is an interprime number because it is at equal distance from previous prime (91105130159) and next prime (91105130161).
It is a Harshad number since it is a multiple of its sum of digits (27).
It is not an unprimeable number, because it can be changed into a prime (91105130161) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 13848792 + ... + 13855368.
It is an arithmetic number, because the mean of its divisors is an integer number (732269538).
Almost surely, 291105130160 is an apocalyptic number.
91105130160 is a gapful number since it is divisible by the number (90) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 91105130160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175744689120).
91105130160 is an abundant number, since it is smaller than the sum of its proper divisors (260384248080).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
91105130160 is a wasteful number, since it uses less digits than its factorization.
91105130160 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6674 (or 6651 counting only the distinct ones).
The product of its (nonzero) digits is 810, while the sum is 27.
Adding to 91105130160 its reverse (6103150119), we get a palindrome (97208280279).
The spelling of 91105130160 in words is "ninety-one billion, one hundred five million, one hundred thirty thousand, one hundred sixty".
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