Base | Representation |
---|---|
bin | 100010100100100… |
… | …1000110001101001 |
3 | 2222211210021121012 |
4 | 1011021020301221 |
5 | 4333431220040 |
6 | 311035153305 |
7 | 40514014451 |
oct | 10511106151 |
9 | 2884707535 |
10 | 1160023145 |
11 | 545891616 |
12 | 2845a5835 |
13 | 156438338 |
14 | b00c4d61 |
15 | 6bc90865 |
hex | 45248c69 |
1160023145 has 8 divisors (see below), whose sum is σ = 1394477640. Its totient is φ = 926385280.
The previous prime is 1160023141. The next prime is 1160023157. The reversal of 1160023145 is 5413200611.
It can be written as a sum of positive squares in 4 ways, for example, as 142157929 + 1017865216 = 11923^2 + 31904^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 1160023145 - 22 = 1160023141 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 1160023145.
It is not an unprimeable number, because it can be changed into a prime (1160023141) 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, 201026 + ... + 206715.
It is an arithmetic number, because the mean of its divisors is an integer number (174309705).
Almost surely, 21160023145 is an apocalyptic number.
It is an amenable number.
1160023145 is a deficient number, since it is larger than the sum of its proper divisors (234454495).
1160023145 is an equidigital number, since it uses as much as digits as its factorization.
1160023145 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 408315.
The product of its (nonzero) digits is 720, while the sum is 23.
The square root of 1160023145 is about 34059.1125104575. The cubic root of 1160023145 is about 1050.7245626298.
Adding to 1160023145 its reverse (5413200611), we get a palindrome (6573223756).
The spelling of 1160023145 in words is "one billion, one hundred sixty million, twenty-three thousand, one hundred forty-five".
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