| Base | Representation |
|---|---|
| bin | 10100110001001011111101… |
| … | …000100011011010001000000 |
| 3 | 102222102010010202101112000000 |
| 4 | 110301023331010123101000 |
| 5 | 43433012402200001030 |
| 6 | 522133252505000000 |
| 7 | 25145112430201500 |
| oct | 2461137504332100 |
| 9 | 388363122345000 |
| 10 | 91341020312640 |
| 11 | 2711656679037a |
| 12 | a2b2602a83000 |
| 13 | 3bc75626670c7 |
| 14 | 187ad01153a00 |
| 15 | a85ec9b2d860 |
| hex | 5312fd11b440 |
91341020312640 has 2352 divisors, whose sum is σ = 387118302240384. Its totient is φ = 20454587596800.
The previous prime is 91341020312567. The next prime is 91341020312723. The reversal of 91341020312640 is 4621302014319.
91341020312640 is a `hidden beast` number, since 9 + 1 + 3 + 4 + 1 + 0 + 2 + 0 + 3 + 1 + 2 + 640 = 666.
It is a tau number, because it is divible by the number of its divisors (2352).
It is a super-2 number, since 2×913410203126402 (a number of 29 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a junction number, because it is equal to n+sod(n) for n = 91341020312595 and 91341020312604.
It is an unprimeable number.
It is a polite number, since it can be written in 335 ways as a sum of consecutive naturals, for example, 195591049687 + ... + 195591050153.
Almost surely, 291341020312640 is an apocalyptic number.
91341020312640 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 91341020312640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193559151120192).
91341020312640 is an abundant number, since it is smaller than the sum of its proper divisors (295777281927744).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
91341020312640 is a wasteful number, since it uses less digits than its factorization.
91341020312640 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 828 (or 796 counting only the distinct ones).
The product of its (nonzero) digits is 31104, while the sum is 36.
Adding to 91341020312640 its reverse (4621302014319), we get a palindrome (95962322326959).
The spelling of 91341020312640 in words is "ninety-one trillion, three hundred forty-one billion, twenty million, three hundred twelve thousand, six hundred forty".
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