Base | Representation |
---|---|
bin | 111001110111… |
… | …1110100011001 |
3 | 2010002112222112 |
4 | 1303233310121 |
5 | 30231424200 |
6 | 3002202105 |
7 | 515622611 |
oct | 163576431 |
9 | 63075875 |
10 | 30342425 |
11 | 16144793 |
12 | a1b3335 |
13 | 6394ac9 |
14 | 405ba41 |
15 | 29e5535 |
hex | 1cefd19 |
30342425 has 12 divisors (see below), whose sum is σ = 37793340. Its totient is φ = 24165120.
The previous prime is 30342413. The next prime is 30342493. The reversal of 30342425 is 52424303.
It can be written as a sum of positive squares in 6 ways, for example, as 15376 + 30327049 = 124^2 + 5507^2 .
It is not a de Polignac number, because 30342425 - 210 = 30341401 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 30342425.
It is a congruent number.
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, 3221 + ... + 8429.
It is an arithmetic number, because the mean of its divisors is an integer number (3149445).
Almost surely, 230342425 is an apocalyptic number.
It is an amenable number.
30342425 is a deficient number, since it is larger than the sum of its proper divisors (7450915).
30342425 is a wasteful number, since it uses less digits than its factorization.
30342425 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5452 (or 5447 counting only the distinct ones).
The product of its (nonzero) digits is 2880, while the sum is 23.
The square root of 30342425 is about 5508.3958644963. The cubic root of 30342425 is about 311.9009965572.
Adding to 30342425 its reverse (52424303), we get a palindrome (82766728).
The spelling of 30342425 in words is "thirty million, three hundred forty-two thousand, four hundred twenty-five".
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