Base | Representation |
---|---|
bin | 111010100001… |
… | …0010000010110 |
3 | 2010201201011111 |
4 | 1311002100112 |
5 | 30323230321 |
6 | 3013325234 |
7 | 521530213 |
oct | 165022026 |
9 | 63651144 |
10 | 30680086 |
11 | 16355448 |
12 | a33681a |
13 | 64826c8 |
14 | 4108b0a |
15 | 2a605e1 |
hex | 1d42416 |
30680086 has 8 divisors (see below), whose sum is σ = 47607120. Its totient is φ = 14811048.
The previous prime is 30680077. The next prime is 30680101. The reversal of 30680086 is 68008603.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 264426 + ... + 264541.
It is an arithmetic number, because the mean of its divisors is an integer number (5950890).
Almost surely, 230680086 is an apocalyptic number.
30680086 is a deficient number, since it is larger than the sum of its proper divisors (16927034).
30680086 is a wasteful number, since it uses less digits than its factorization.
30680086 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 528998.
The product of its (nonzero) digits is 6912, while the sum is 31.
The square root of 30680086 is about 5538.9607328451. The cubic root of 30680086 is about 313.0537118574.
Adding to 30680086 its reverse (68008603), we get a palindrome (98688689).
The spelling of 30680086 in words is "thirty million, six hundred eighty thousand, eighty-six".
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