Base | Representation |
---|---|
bin | 111101011001100… |
… | …110101011001111 |
3 | 2122210100121222202 |
4 | 331121212223033 |
5 | 4102202402231 |
6 | 250115032115 |
7 | 34345615460 |
oct | 7531465317 |
9 | 2583317882 |
10 | 1030122191 |
11 | 48952805a |
12 | 248b9b63b |
13 | 135555977 |
14 | 9ab4cd67 |
15 | 606815cb |
hex | 3d666acf |
1030122191 has 16 divisors (see below), whose sum is σ = 1248742656. Its totient is φ = 829550976.
The previous prime is 1030122179. The next prime is 1030122193. The reversal of 1030122191 is 1912210301.
It is a cyclic number.
It is not a de Polignac number, because 1030122191 - 210 = 1030121167 is a prime.
It is a super-2 number, since 2×10301221912 = 2122303456781280962, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1030122193) 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 15 ways as a sum of consecutive naturals, for example, 62480 + ... + 77226.
It is an arithmetic number, because the mean of its divisors is an integer number (78046416).
Almost surely, 21030122191 is an apocalyptic number.
1030122191 is a deficient number, since it is larger than the sum of its proper divisors (218620465).
1030122191 is a wasteful number, since it uses less digits than its factorization.
1030122191 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 15358.
The product of its (nonzero) digits is 108, while the sum is 20.
The square root of 1030122191 is about 32095.5166806830. The cubic root of 1030122191 is about 1009.9415680341.
Adding to 1030122191 its reverse (1912210301), we get a palindrome (2942332492).
The spelling of 1030122191 in words is "one billion, thirty million, one hundred twenty-two thousand, one hundred ninety-one".
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