Base | Representation |
---|---|
bin | 10110110010001… |
… | …11010100001101 |
3 | 111022122120002211 |
4 | 23121013110031 |
5 | 342412223231 |
6 | 30544350421 |
7 | 4510413616 |
oct | 1331072415 |
9 | 438576084 |
10 | 191132941 |
11 | 9898700a |
12 | 54015411 |
13 | 307a131c |
14 | 1b554c0d |
15 | 11ba6eb1 |
hex | b64750d |
191132941 has 2 divisors, whose sum is σ = 191132942. Its totient is φ = 191132940.
The previous prime is 191132927. The next prime is 191132957. The reversal of 191132941 is 149231191.
191132941 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 119814916 + 71318025 = 10946^2 + 8445^2 .
It is an emirp because it is prime and its reverse (149231191) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 191132941 - 211 = 191130893 is a prime.
It is a super-2 number, since 2×1911329412 = 73063602270618962, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (191132911) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95566470 + 95566471.
It is an arithmetic number, because the mean of its divisors is an integer number (95566471).
Almost surely, 2191132941 is an apocalyptic number.
It is an amenable number.
191132941 is a deficient number, since it is larger than the sum of its proper divisors (1).
191132941 is an equidigital number, since it uses as much as digits as its factorization.
191132941 is an evil number, because the sum of its binary digits is even.
The product of its digits is 1944, while the sum is 31.
The square root of 191132941 is about 13825.0837610482. The cubic root of 191132941 is about 576.0301040802.
The spelling of 191132941 in words is "one hundred ninety-one million, one hundred thirty-two thousand, nine hundred forty-one".
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