Base | Representation |
---|---|
bin | 1010111001001… |
… | …10000101111101 |
3 | 20100221200201202 |
4 | 11130212011331 |
5 | 141343212031 |
6 | 13022345245 |
7 | 2156510144 |
oct | 534460575 |
9 | 210850652 |
10 | 91382141 |
11 | 47645834 |
12 | 2672b225 |
13 | 15c17096 |
14 | c1ca75b |
15 | 80512cb |
hex | 572617d |
91382141 has 8 divisors (see below), whose sum is σ = 94539264. Its totient is φ = 88238160.
The previous prime is 91382131. The next prime is 91382167. The reversal of 91382141 is 14128319.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-91382141 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (91382101) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12071 + ... + 18123.
It is an arithmetic number, because the mean of its divisors is an integer number (11817408).
Almost surely, 291382141 is an apocalyptic number.
It is an amenable number.
91382141 is a deficient number, since it is larger than the sum of its proper divisors (3157123).
91382141 is a wasteful number, since it uses less digits than its factorization.
91382141 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6571.
The product of its digits is 1728, while the sum is 29.
The square root of 91382141 is about 9559.4006611293. The cubic root of 91382141 is about 450.4228798476.
The spelling of 91382141 in words is "ninety-one million, three hundred eighty-two thousand, one hundred forty-one".
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