Base | Representation |
---|---|
bin | 100101000111011… |
… | …0111101111110101 |
3 | 10012210110111120000 |
4 | 1022032313233311 |
5 | 10022311143331 |
6 | 323325301513 |
7 | 42601554525 |
oct | 11216675765 |
9 | 3183414500 |
10 | 1245412341 |
11 | 58a0037a8 |
12 | 2a9104899 |
13 | 16b0346a4 |
14 | bb591685 |
15 | 7450b0e6 |
hex | 4a3b7bf5 |
1245412341 has 20 divisors (see below), whose sum is σ = 1910717292. Its totient is φ = 807833088.
The previous prime is 1245412331. The next prime is 1245412373. The reversal of 1245412341 is 1432145421.
1245412341 is a `hidden beast` number, since 1 + 245 + 412 + 3 + 4 + 1 = 666.
It can be written as a sum of positive squares in 2 ways, for example, as 1088010225 + 157402116 = 32985^2 + 12546^2 .
It is not a de Polignac number, because 1245412341 - 26 = 1245412277 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1245412331) by changing a digit.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 204780 + ... + 210773.
Almost surely, 21245412341 is an apocalyptic number.
It is an amenable number.
1245412341 is a deficient number, since it is larger than the sum of its proper divisors (665304951).
1245412341 is an equidigital number, since it uses as much as digits as its factorization.
1245412341 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 415602 (or 415593 counting only the distinct ones).
The product of its digits is 3840, while the sum is 27.
The square root of 1245412341 is about 35290.4001252465. The cubic root of 1245412341 is about 1075.8978879458.
Adding to 1245412341 its reverse (1432145421), we get a palindrome (2677557762).
The spelling of 1245412341 in words is "one billion, two hundred forty-five million, four hundred twelve thousand, three hundred forty-one".
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