Base | Representation |
---|---|
bin | 100100101010011… |
… | …0110010010101001 |
3 | 10011201211201220222 |
4 | 1021110312102221 |
5 | 10004412431100 |
6 | 322023255425 |
7 | 42325354553 |
oct | 11124662251 |
9 | 3151751828 |
10 | 1230202025 |
11 | 581464a98 |
12 | 2a3baa575 |
13 | 167b3a3c0 |
14 | b95524d3 |
15 | 73004485 |
hex | 495364a9 |
1230202025 has 48 divisors (see below), whose sum is σ = 1831132800. Its totient is φ = 809948160.
The previous prime is 1230202009. The next prime is 1230202031. The reversal of 1230202025 is 5202020321.
It is not a de Polignac number, because 1230202025 - 24 = 1230202009 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (17).
It is a junction number, because it is equal to n+sod(n) for n = 1230201994 and 1230202012.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 99116 + ... + 110834.
It is an arithmetic number, because the mean of its divisors is an integer number (38148600).
Almost surely, 21230202025 is an apocalyptic number.
It is an amenable number.
1230202025 is a deficient number, since it is larger than the sum of its proper divisors (600930775).
1230202025 is a wasteful number, since it uses less digits than its factorization.
1230202025 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11778 (or 11773 counting only the distinct ones).
The product of its (nonzero) digits is 240, while the sum is 17.
The square root of 1230202025 is about 35074.2359146996. The cubic root of 1230202025 is about 1071.4999271630.
Adding to 1230202025 its reverse (5202020321), we get a palindrome (6432222346).
The spelling of 1230202025 in words is "one billion, two hundred thirty million, two hundred two thousand, twenty-five".
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