Base | Representation |
---|---|
bin | 100100101010011… |
… | …0110000110011101 |
3 | 10011201211200212002 |
4 | 1021110312012131 |
5 | 10004412414440 |
6 | 322023252045 |
7 | 42325352360 |
oct | 11124660635 |
9 | 3151750762 |
10 | 1230201245 |
11 | 581464449 |
12 | 2a3baa025 |
13 | 167b39c40 |
14 | b95520d7 |
15 | 73004115 |
hex | 4953619d |
1230201245 has 16 divisors (see below), whose sum is σ = 1816913280. Its totient is φ = 778676544.
The previous prime is 1230201229. The next prime is 1230201251. The reversal of 1230201245 is 5421020321.
It is a cyclic number.
It is not a de Polignac number, because 1230201245 - 24 = 1230201229 is a prime.
It is a Curzon number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1351415 + ... + 1352324.
It is an arithmetic number, because the mean of its divisors is an integer number (113557080).
Almost surely, 21230201245 is an apocalyptic number.
It is an amenable number.
1230201245 is a deficient number, since it is larger than the sum of its proper divisors (586712035).
1230201245 is a wasteful number, since it uses less digits than its factorization.
1230201245 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2703764.
The product of its (nonzero) digits is 480, while the sum is 20.
The square root of 1230201245 is about 35074.2247954249. The cubic root of 1230201245 is about 1071.4997007043.
Adding to 1230201245 its reverse (5421020321), we get a palindrome (6651221566).
The spelling of 1230201245 in words is "one billion, two hundred thirty million, two hundred one thousand, two hundred forty-five".
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