Base | Representation |
---|---|
bin | 111001101010… |
… | …0011111100101 |
3 | 2002212212110012 |
4 | 1303110133211 |
5 | 30214334001 |
6 | 2555540005 |
7 | 514645400 |
oct | 163243745 |
9 | 62785405 |
10 | 30230501 |
11 | 16078694 |
12 | a15a605 |
13 | 6355b92 |
14 | 402cd37 |
15 | 29c22bb |
hex | 1cd47e5 |
30230501 has 18 divisors (see below), whose sum is σ = 37136070. Its totient is φ = 24533712.
The previous prime is 30230491. The next prime is 30230503. The reversal of 30230501 is 10503203.
It can be written as a sum of positive squares in only one way, i.e., 21669025 + 8561476 = 4655^2 + 2926^2 .
It is not a de Polignac number, because 30230501 - 210 = 30229477 is a prime.
It is a super-2 number, since 2×302305012 = 1827766381422002, which contains 22 as substring.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30230503) by changing a digit.
It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 16835 + ... + 18543.
It is an arithmetic number, because the mean of its divisors is an integer number (2063115).
Almost surely, 230230501 is an apocalyptic number.
It is an amenable number.
30230501 is a deficient number, since it is larger than the sum of its proper divisors (6905569).
30230501 is a wasteful number, since it uses less digits than its factorization.
30230501 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1761 (or 1735 counting only the distinct ones).
The product of its (nonzero) digits is 90, while the sum is 14.
The square root of 30230501 is about 5498.2270778861. The cubic root of 30230501 is about 311.5170213314.
Adding to 30230501 its reverse (10503203), we get a palindrome (40733704).
It can be divided in two parts, 302 and 30501, that added together give a palindrome (30803).
The spelling of 30230501 in words is "thirty million, two hundred thirty thousand, five hundred one".
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