Base | Representation |
---|---|
bin | 100100101010001… |
… | …1110010111011001 |
3 | 10011201122202111100 |
4 | 1021110132113121 |
5 | 10004401312100 |
6 | 322021222013 |
7 | 42324466053 |
oct | 11124362731 |
9 | 3151582440 |
10 | 1230104025 |
11 | 5813a83a7 |
12 | 2a3b61909 |
13 | 167b04907 |
14 | b95288d3 |
15 | 72ed5400 |
hex | 4951e5d9 |
1230104025 has 54 divisors (see below), whose sum is σ = 2277018510. Its totient is φ = 634780800.
The previous prime is 1230104021. The next prime is 1230104027. The reversal of 1230104025 is 5204010321.
It can be written as a sum of positive squares in 3 ways, for example, as 322166601 + 907937424 = 17949^2 + 30132^2 .
It is not a de Polignac number, because 1230104025 - 22 = 1230104021 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 1230103989 and 1230104007.
It is not an unprimeable number, because it can be changed into a prime (1230104021) by changing a digit.
It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 213381 + ... + 219069.
Almost surely, 21230104025 is an apocalyptic number.
1230104025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
1230104025 is a deficient number, since it is larger than the sum of its proper divisors (1046914485).
1230104025 is a wasteful number, since it uses less digits than its factorization.
1230104025 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5767 (or 5728 counting only the distinct ones).
The product of its (nonzero) digits is 240, while the sum is 18.
The square root of 1230104025 is about 35072.8388500275. The cubic root of 1230104025 is about 1071.4714739011.
Adding to 1230104025 its reverse (5204010321), we get a palindrome (6434114346).
The spelling of 1230104025 in words is "one billion, two hundred thirty million, one hundred four thousand, twenty-five".
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