Base | Representation |
---|---|
bin | 111010011010… |
… | …0111001101001 |
3 | 2010121221010112 |
4 | 1310310321221 |
5 | 30320003020 |
6 | 3012224105 |
7 | 521211560 |
oct | 164647151 |
9 | 63557115 |
10 | 30625385 |
11 | 1631833a |
12 | a30b035 |
13 | 646383b |
14 | 40d2bd7 |
15 | 2a4e2c5 |
hex | 1d34e69 |
30625385 has 8 divisors (see below), whose sum is σ = 42000576. Its totient is φ = 21000240.
The previous prime is 30625379. The next prime is 30625457. The reversal of 30625385 is 58352603.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 30625385 - 216 = 30559849 is a prime.
It is a Duffinian number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 437471 + ... + 437540.
It is an arithmetic number, because the mean of its divisors is an integer number (5250072).
Almost surely, 230625385 is an apocalyptic number.
30625385 is a gapful number since it is divisible by the number (35) formed by its first and last digit.
It is an amenable number.
30625385 is a deficient number, since it is larger than the sum of its proper divisors (11375191).
30625385 is an equidigital number, since it uses as much as digits as its factorization.
30625385 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 875023.
The product of its (nonzero) digits is 21600, while the sum is 32.
The square root of 30625385 is about 5534.0206902396. The cubic root of 30625385 is about 312.8675483368.
Adding to 30625385 its reverse (58352603), we get a palindrome (88977988).
The spelling of 30625385 in words is "thirty million, six hundred twenty-five thousand, three hundred eighty-five".
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