Base | Representation |
---|---|
bin | 100010010001111… |
… | …0010010011111111 |
3 | 2222011100211102001 |
4 | 1010203302103333 |
5 | 4323424404212 |
6 | 310045243131 |
7 | 40334544334 |
oct | 10443622377 |
9 | 2864324361 |
10 | 1150231807 |
11 | 5403041aa |
12 | 2812634a7 |
13 | 1543ba74a |
14 | aca9698b |
15 | 6aea9657 |
hex | 448f24ff |
1150231807 has 4 divisors (see below), whose sum is σ = 1150362256. Its totient is φ = 1150101360.
The previous prime is 1150231787. The next prime is 1150231837. The reversal of 1150231807 is 7081320511.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7081320511 = 89 ⋅79565399.
It is a cyclic number.
It is not a de Polignac number, because 1150231807 - 219 = 1149707519 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 (1150231837) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50958 + ... + 69979.
It is an arithmetic number, because the mean of its divisors is an integer number (287590564).
Almost surely, 21150231807 is an apocalyptic number.
1150231807 is a deficient number, since it is larger than the sum of its proper divisors (130449).
1150231807 is an equidigital number, since it uses as much as digits as its factorization.
1150231807 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 130448.
The product of its (nonzero) digits is 1680, while the sum is 28.
The square root of 1150231807 is about 33915.0675511637. The cubic root of 1150231807 is about 1047.7599431589.
The spelling of 1150231807 in words is "one billion, one hundred fifty million, two hundred thirty-one thousand, eight hundred seven".
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