Base | Representation |
---|---|
bin | 111001010111… |
… | …1111010001111 |
3 | 2002121020220100 |
4 | 1302233322033 |
5 | 30200040110 |
6 | 2552422143 |
7 | 513452463 |
oct | 162577217 |
9 | 62536810 |
10 | 30080655 |
11 | 15a86050 |
12 | a0a7953 |
13 | 6302907 |
14 | 3dd04a3 |
15 | 2992bc0 |
hex | 1cafe8f |
30080655 has 48 divisors (see below), whose sum is σ = 57792384. Its totient is φ = 14351040.
The previous prime is 30080623. The next prime is 30080657. The reversal of 30080655 is 55608003.
30080655 is a `hidden beast` number, since 3 + 0 + 0 + 8 + 0 + 655 = 666.
It is not a de Polignac number, because 30080655 - 25 = 30080623 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30080657) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 32712 + ... + 33618.
It is an arithmetic number, because the mean of its divisors is an integer number (1204008).
Almost surely, 230080655 is an apocalyptic number.
30080655 is a deficient number, since it is larger than the sum of its proper divisors (27711729).
30080655 is a wasteful number, since it uses less digits than its factorization.
30080655 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 996 (or 993 counting only the distinct ones).
The product of its (nonzero) digits is 3600, while the sum is 27.
The square root of 30080655 is about 5484.5833934767. The cubic root of 30080655 is about 311.0014612408.
Adding to 30080655 its reverse (55608003), we get a palindrome (85688658).
The spelling of 30080655 in words is "thirty million, eighty thousand, six hundred fifty-five".
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