Base | Representation |
---|---|
bin | 100100101011011… |
… | …1111100100111001 |
3 | 10011202220022021122 |
4 | 1021112333210321 |
5 | 10010033424340 |
6 | 322043315025 |
7 | 42333216146 |
oct | 11126774471 |
9 | 3152808248 |
10 | 1230764345 |
11 | 581809518 |
12 | 2a421ba75 |
13 | 167ca6335 |
14 | b965b3cd |
15 | 730b5db5 |
hex | 495bf939 |
1230764345 has 4 divisors (see below), whose sum is σ = 1476917220. Its totient is φ = 984611472.
The previous prime is 1230764341. The next prime is 1230764369. The reversal of 1230764345 is 5434670321.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5434670321 = 1201 ⋅4525121.
It can be written as a sum of positive squares in 2 ways, for example, as 260628736 + 970135609 = 16144^2 + 31147^2 .
It is a cyclic number.
It is not a de Polignac number, because 1230764345 - 22 = 1230764341 is a prime.
It is a super-3 number, since 3×12307643453 (a number of 28 digits) contains 333 as substring.
It is not an unprimeable number, because it can be changed into a prime (1230764341) 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, 123076430 + ... + 123076439.
It is an arithmetic number, because the mean of its divisors is an integer number (369229305).
Almost surely, 21230764345 is an apocalyptic number.
It is an amenable number.
1230764345 is a deficient number, since it is larger than the sum of its proper divisors (246152875).
1230764345 is an equidigital number, since it uses as much as digits as its factorization.
1230764345 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 246152874.
The product of its (nonzero) digits is 60480, while the sum is 35.
The square root of 1230764345 is about 35082.2511392869. The cubic root of 1230764345 is about 1071.6631616145.
The spelling of 1230764345 in words is "one billion, two hundred thirty million, seven hundred sixty-four thousand, three hundred forty-five".
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