Base | Representation |
---|---|
bin | 111010000010… |
… | …1011100110011 |
3 | 2010021001112002 |
4 | 1310011130303 |
5 | 30242243102 |
6 | 3004124215 |
7 | 516442124 |
oct | 164053463 |
9 | 63231462 |
10 | 30431027 |
11 | 161a5310 |
12 | a23666b |
13 | 63c6233 |
14 | 408204b |
15 | 2a11902 |
hex | 1d05733 |
30431027 has 8 divisors (see below), whose sum is σ = 34944960. Its totient is φ = 26208360.
The previous prime is 30431021. The next prime is 30431059. The reversal of 30431027 is 72013403.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 30431027 - 222 = 26236723 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30431021) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72593 + ... + 73010.
It is an arithmetic number, because the mean of its divisors is an integer number (4368120).
Almost surely, 230431027 is an apocalyptic number.
30431027 is a deficient number, since it is larger than the sum of its proper divisors (4513933).
30431027 is a wasteful number, since it uses less digits than its factorization.
30431027 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 145633.
The product of its (nonzero) digits is 504, while the sum is 20.
The square root of 30431027 is about 5516.4324522285. The cubic root of 30431027 is about 312.2042924308.
The spelling of 30431027 in words is "thirty million, four hundred thirty-one thousand, twenty-seven".
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