Base | Representation |
---|---|
bin | 111001001111… |
… | …0111111000011 |
3 | 2002110201210210 |
4 | 1302132333003 |
5 | 30140330311 |
6 | 2551125203 |
7 | 513043410 |
oct | 162367703 |
9 | 62421723 |
10 | 30011331 |
11 | 15a38a59 |
12 | a073803 |
13 | 62aa1ac |
14 | 3db3107 |
15 | 297c3a6 |
hex | 1c9efc3 |
30011331 has 16 divisors (see below), whose sum is σ = 46139904. Its totient is φ = 16996224.
The previous prime is 30011321. The next prime is 30011347. The reversal of 30011331 is 13311003.
It is not a de Polignac number, because 30011331 - 25 = 30011299 is a prime.
It is a super-3 number, since 3×300113313 (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is not an unprimeable number, because it can be changed into a prime (30011321) 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, 3951 + ... + 8696.
It is an arithmetic number, because the mean of its divisors is an integer number (2883744).
Almost surely, 230011331 is an apocalyptic number.
30011331 is a deficient number, since it is larger than the sum of its proper divisors (16128573).
30011331 is a wasteful number, since it uses less digits than its factorization.
30011331 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12770.
The product of its (nonzero) digits is 27, while the sum is 12.
The square root of 30011331 is about 5478.2598514492. The cubic root of 30011331 is about 310.7623657285.
Adding to 30011331 its reverse (13311003), we get a palindrome (43322334).
The spelling of 30011331 in words is "thirty million, eleven thousand, three hundred thirty-one".
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