Base | Representation |
---|---|
bin | 111010010000… |
… | …1010010000110 |
3 | 2010110211220102 |
4 | 1310201102012 |
5 | 30304420110 |
6 | 3010404102 |
7 | 520425365 |
oct | 164412206 |
9 | 63424812 |
10 | 30545030 |
11 | 16272a2a |
12 | a290632 |
13 | 64360a9 |
14 | 40b17dc |
15 | 2a355a5 |
hex | 1d21486 |
30545030 has 16 divisors (see below), whose sum is σ = 55469664. Its totient is φ = 12109440.
The previous prime is 30545023. The next prime is 30545051. The reversal of 30545030 is 3054503.
It is an alternating number because its digits alternate between odd and even.
It is a junction number, because it is equal to n+sod(n) for n = 30544993 and 30545011.
It is a congruent 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, 12386 + ... + 14645.
It is an arithmetic number, because the mean of its divisors is an integer number (3466854).
Almost surely, 230545030 is an apocalyptic number.
30545030 is a deficient number, since it is larger than the sum of its proper divisors (24924634).
30545030 is a wasteful number, since it uses less digits than its factorization.
30545030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 27151.
The product of its (nonzero) digits is 900, while the sum is 20.
The square root of 30545030 is about 5526.7558295984. The cubic root of 30545030 is about 312.5936743176.
Adding to 30545030 its reverse (3054503), we get a palindrome (33599533).
The spelling of 30545030 in words is "thirty million, five hundred forty-five thousand, thirty".
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