Base | Representation |
---|---|
bin | 111001101010… |
… | …1101001101101 |
3 | 2002220002221220 |
4 | 1303111221231 |
5 | 30220011440 |
6 | 3000013553 |
7 | 514665255 |
oct | 163255155 |
9 | 62802856 |
10 | 30235245 |
11 | 16081207 |
12 | a1612b9 |
13 | 63580a1 |
14 | 4030965 |
15 | 29c38d0 |
hex | 1cd5a6d |
30235245 has 32 divisors (see below), whose sum is σ = 50004864. Its totient is φ = 15590400.
The previous prime is 30235243. The next prime is 30235267. The reversal of 30235245 is 54253203.
It is not a de Polignac number, because 30235245 - 21 = 30235243 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30235243) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 129649 + ... + 129881.
It is an arithmetic number, because the mean of its divisors is an integer number (1562652).
Almost surely, 230235245 is an apocalyptic number.
It is an amenable number.
30235245 is a deficient number, since it is larger than the sum of its proper divisors (19769619).
30235245 is a wasteful number, since it uses less digits than its factorization.
30235245 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 493.
The product of its (nonzero) digits is 3600, while the sum is 24.
The square root of 30235245 is about 5498.6584727550. The cubic root of 30235245 is about 311.5333156853.
Adding to 30235245 its reverse (54253203), we get a palindrome (84488448).
The spelling of 30235245 in words is "thirty million, two hundred thirty-five thousand, two hundred forty-five".
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