Base | Representation |
---|---|
bin | 111010000101… |
… | …1111010001101 |
3 | 2010022101211000 |
4 | 1310023322031 |
5 | 30244114420 |
6 | 3004450513 |
7 | 516612222 |
oct | 164137215 |
9 | 63271730 |
10 | 30457485 |
11 | 16213183 |
12 | a249a39 |
13 | 64052a6 |
14 | 408b949 |
15 | 2a19690 |
hex | 1d0be8d |
30457485 has 16 divisors (see below), whose sum is σ = 54146880. Its totient is φ = 16243920.
The previous prime is 30457481. The next prime is 30457487. The reversal of 30457485 is 58475403.
30457485 is a `hidden beast` number, since 3 + 0 + 4 + 574 + 85 = 666.
It is not a de Polignac number, because 30457485 - 22 = 30457481 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30457481) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112671 + ... + 112940.
It is an arithmetic number, because the mean of its divisors is an integer number (3384180).
Almost surely, 230457485 is an apocalyptic number.
It is an amenable number.
30457485 is a deficient number, since it is larger than the sum of its proper divisors (23689395).
30457485 is a wasteful number, since it uses less digits than its factorization.
30457485 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 225625 (or 225619 counting only the distinct ones).
The product of its (nonzero) digits is 67200, while the sum is 36.
The square root of 30457485 is about 5518.8300390572. The cubic root of 30457485 is about 312.2947473512.
The spelling of 30457485 in words is "thirty million, four hundred fifty-seven thousand, four hundred eighty-five".
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