Base | Representation |
---|---|
bin | 100110110011110… |
… | …0000001110001001 |
3 | 10100202022200021000 |
4 | 1031213200032021 |
5 | 10131330414400 |
6 | 333114405213 |
7 | 44161346013 |
oct | 11547401611 |
9 | 3322280230 |
10 | 1302201225 |
11 | 609071066 |
12 | 304130809 |
13 | 179a28b90 |
14 | c4d351b3 |
15 | 794c7600 |
hex | 4d9e0389 |
1302201225 has 48 divisors (see below), whose sum is σ = 2576224000. Its totient is φ = 641079360.
The previous prime is 1302201217. The next prime is 1302201227. The reversal of 1302201225 is 5221022031.
It is not a de Polignac number, because 1302201225 - 23 = 1302201217 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 1302201198 and 1302201207.
It is not an unprimeable number, because it can be changed into a prime (1302201227) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 65425 + ... + 82974.
Almost surely, 21302201225 is an apocalyptic number.
1302201225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
1302201225 is a deficient number, since it is larger than the sum of its proper divisors (1274022775).
1302201225 is a wasteful number, since it uses less digits than its factorization.
1302201225 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 148431 (or 148420 counting only the distinct ones).
The product of its (nonzero) digits is 240, while the sum is 18.
The square root of 1302201225 is about 36086.0253422291. The cubic root of 1302201225 is about 1092.0085360400.
Adding to 1302201225 its reverse (5221022031), we get a palindrome (6523223256).
The spelling of 1302201225 in words is "one billion, three hundred two million, two hundred one thousand, two hundred twenty-five".
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