Base | Representation |
---|---|
bin | 111010111110… |
… | …1100101001101 |
3 | 2011012001111110 |
4 | 1311331211031 |
5 | 30404014320 |
6 | 3022442233 |
7 | 523561524 |
oct | 165754515 |
9 | 64161443 |
10 | 30923085 |
11 | 16500a76 |
12 | a433379 |
13 | 65391ab |
14 | 416d4bb |
15 | 2aac5e0 |
hex | 1d7d94d |
30923085 has 16 divisors (see below), whose sum is σ = 52387776. Its totient is φ = 15522048.
The previous prime is 30923059. The next prime is 30923099. The reversal of 30923085 is 58032903.
It is a happy number.
It is not a de Polignac number, because 30923085 - 215 = 30890317 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60379 + ... + 60888.
It is an arithmetic number, because the mean of its divisors is an integer number (3274236).
Almost surely, 230923085 is an apocalyptic number.
It is an amenable number.
30923085 is a deficient number, since it is larger than the sum of its proper divisors (21464691).
30923085 is a wasteful number, since it uses less digits than its factorization.
30923085 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 121292.
The product of its (nonzero) digits is 6480, while the sum is 30.
The square root of 30923085 is about 5560.8529022084. The cubic root of 30923085 is about 313.8780443807.
Adding to 30923085 its reverse (58032903), we get a palindrome (88955988).
The spelling of 30923085 in words is "thirty million, nine hundred twenty-three thousand, eighty-five".
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