Base | Representation |
---|---|
bin | 111001111111… |
… | …0010100100001 |
3 | 2010012120110112 |
4 | 1303332110201 |
5 | 30240324300 |
6 | 3003341105 |
7 | 516261026 |
oct | 163762441 |
9 | 63176415 |
10 | 30401825 |
11 | 16185383 |
12 | a221795 |
13 | 63b5b5c |
14 | 407554d |
15 | 2a07e35 |
hex | 1cfe521 |
30401825 has 12 divisors (see below), whose sum is σ = 37990128. Its totient is φ = 24133200.
The previous prime is 30401801. The next prime is 30401857. The reversal of 30401825 is 52810403.
It is not a de Polignac number, because 30401825 - 216 = 30336289 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 30401825.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1367 + ... + 7916.
It is an arithmetic number, because the mean of its divisors is an integer number (3165844).
Almost surely, 230401825 is an apocalyptic number.
It is an amenable number.
30401825 is a deficient number, since it is larger than the sum of its proper divisors (7588303).
30401825 is a wasteful number, since it uses less digits than its factorization.
30401825 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9424 (or 9419 counting only the distinct ones).
The product of its (nonzero) digits is 960, while the sum is 23.
The square root of 30401825 is about 5513.7849976219. The cubic root of 30401825 is about 312.1043954017.
The spelling of 30401825 in words is "thirty million, four hundred one thousand, eight hundred twenty-five".
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