Base | Representation |
---|---|
bin | 10110110000110… |
… | …10011100010101 |
3 | 111022022012222102 |
4 | 23120122130111 |
5 | 342340333031 |
6 | 30540411445 |
7 | 4506020015 |
oct | 1330323425 |
9 | 438265872 |
10 | 190949141 |
11 | 98870a09 |
12 | 53b46b85 |
13 | 30738776 |
14 | 1b507c45 |
15 | 11b6c7cb |
hex | b61a715 |
190949141 has 4 divisors (see below), whose sum is σ = 191016384. Its totient is φ = 190881900.
The previous prime is 190949123. The next prime is 190949147. The reversal of 190949141 is 141949091.
190949141 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 141949091 = 433 ⋅327827.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-190949141 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 190949095 and 190949104.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (190949147) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29165 + ... + 35106.
It is an arithmetic number, because the mean of its divisors is an integer number (47754096).
Almost surely, 2190949141 is an apocalyptic number.
It is an amenable number.
190949141 is a deficient number, since it is larger than the sum of its proper divisors (67243).
190949141 is an equidigital number, since it uses as much as digits as its factorization.
190949141 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 67242.
The product of its (nonzero) digits is 11664, while the sum is 38.
The square root of 190949141 is about 13818.4348245378. The cubic root of 190949141 is about 575.8454014187.
Subtracting from 190949141 its reverse (141949091), we obtain a triangular number (49000050 = T9899).
The spelling of 190949141 in words is "one hundred ninety million, nine hundred forty-nine thousand, one hundred forty-one".
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