Base | Representation |
---|---|
bin | 111010000010… |
… | …1011010111011 |
3 | 2010021001100122 |
4 | 1310011122323 |
5 | 30242242112 |
6 | 3004123455 |
7 | 516441563 |
oct | 164053273 |
9 | 63231318 |
10 | 30430907 |
11 | 161a5211 |
12 | a23658b |
13 | 63c6170 |
14 | 4081da3 |
15 | 2a11872 |
hex | 1d056bb |
30430907 has 16 divisors (see below), whose sum is σ = 33530112. Its totient is φ = 27449760.
The previous prime is 30430903. The next prime is 30430919. The reversal of 30430907 is 70903403.
It is not a de Polignac number, because 30430907 - 22 = 30430903 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30430903) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182138 + ... + 182304.
It is an arithmetic number, because the mean of its divisors is an integer number (2095632).
Almost surely, 230430907 is an apocalyptic number.
30430907 is a deficient number, since it is larger than the sum of its proper divisors (3099205).
30430907 is a wasteful number, since it uses less digits than its factorization.
30430907 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 418.
The product of its (nonzero) digits is 2268, while the sum is 26.
The square root of 30430907 is about 5516.4215756231. The cubic root of 30430907 is about 312.2038820539.
The spelling of 30430907 in words is "thirty million, four hundred thirty thousand, nine hundred seven".
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