Base | Representation |
---|---|
bin | 111010000010… |
… | …1010100001111 |
3 | 2010021000202210 |
4 | 1310011110033 |
5 | 30242233404 |
6 | 3004121503 |
7 | 516440412 |
oct | 164052417 |
9 | 63230683 |
10 | 30430479 |
11 | 161a4962 |
12 | a236293 |
13 | 63c5c01 |
14 | 4081b79 |
15 | 2a11689 |
hex | 1d0550f |
30430479 has 16 divisors (see below), whose sum is σ = 41845248. Its totient is φ = 19660032.
The previous prime is 30430451. The next prime is 30430481. The reversal of 30430479 is 97403403.
It is not a de Polignac number, because 30430479 - 28 = 30430223 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30430409) 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, 14079 + ... + 16095.
It is an arithmetic number, because the mean of its divisors is an integer number (2615328).
Almost surely, 230430479 is an apocalyptic number.
30430479 is a deficient number, since it is larger than the sum of its proper divisors (11414769).
30430479 is a wasteful number, since it uses less digits than its factorization.
30430479 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2174.
The product of its (nonzero) digits is 9072, while the sum is 30.
The square root of 30430479 is about 5516.3827822224. The cubic root of 30430479 is about 312.2024183678.
The spelling of 30430479 in words is "thirty million, four hundred thirty thousand, four hundred seventy-nine".
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