Base | Representation |
---|---|
bin | 111010001001… |
… | …1011011101001 |
3 | 2010100222002012 |
4 | 1310103123221 |
5 | 30301111142 |
6 | 3005245305 |
7 | 520101110 |
oct | 164233351 |
9 | 63328065 |
10 | 30488297 |
11 | 16234344 |
12 | a263835 |
13 | 6416318 |
14 | 4098c77 |
15 | 2a23882 |
hex | 1d136e9 |
30488297 has 12 divisors (see below), whose sum is σ = 35728128. Its totient is φ = 25485600.
The previous prime is 30488287. The next prime is 30488321. The reversal of 30488297 is 79288403.
It is not a de Polignac number, because 30488297 - 214 = 30471913 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (41).
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30488287) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10472 + ... + 13062.
It is an arithmetic number, because the mean of its divisors is an integer number (2977344).
Almost surely, 230488297 is an apocalyptic number.
It is an amenable number.
30488297 is a deficient number, since it is larger than the sum of its proper divisors (5239831).
30488297 is an equidigital number, since it uses as much as digits as its factorization.
30488297 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2680 (or 2639 counting only the distinct ones).
The product of its (nonzero) digits is 96768, while the sum is 41.
The square root of 30488297 is about 5521.6208671005. The cubic root of 30488297 is about 312.4000217773.
The spelling of 30488297 in words is "thirty million, four hundred eighty-eight thousand, two hundred ninety-seven".
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