Base | Representation |
---|---|
bin | 111001010111… |
… | …0100010101101 |
3 | 2002120222012212 |
4 | 1302232202231 |
5 | 30144400203 |
6 | 2552340205 |
7 | 513430241 |
oct | 162564255 |
9 | 62528185 |
10 | 30075053 |
11 | 15a81918 |
12 | a0a4665 |
13 | 63001b8 |
14 | 3dcc421 |
15 | 29911d8 |
hex | 1cae8ad |
30075053 has 8 divisors (see below), whose sum is σ = 32395776. Its totient is φ = 27838800.
The previous prime is 30075049. The next prime is 30075107. The reversal of 30075053 is 35057003.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 30075053 - 22 = 30075049 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (23).
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30074053) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20378 + ... + 21803.
It is an arithmetic number, because the mean of its divisors is an integer number (4049472).
Almost surely, 230075053 is an apocalyptic number.
It is an amenable number.
30075053 is a deficient number, since it is larger than the sum of its proper divisors (2320723).
30075053 is a wasteful number, since it uses less digits than its factorization.
30075053 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 42235.
The product of its (nonzero) digits is 1575, while the sum is 23.
The square root of 30075053 is about 5484.0726654558. The cubic root of 30075053 is about 310.9821538337.
The spelling of 30075053 in words is "thirty million, seventy-five thousand, fifty-three".
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