Base | Representation |
---|---|
bin | 111001010000… |
… | …1110111011101 |
3 | 2002111022222220 |
4 | 1302201313131 |
5 | 30141220013 |
6 | 2551255553 |
7 | 513123000 |
oct | 162416735 |
9 | 62438886 |
10 | 30023133 |
11 | 15a46908 |
12 | a07a5b9 |
13 | 62b268a |
14 | 3db7537 |
15 | 2980b23 |
hex | 1ca1ddd |
30023133 has 32 divisors (see below), whose sum is σ = 47232000. Its totient is φ = 16955568.
The previous prime is 30023107. The next prime is 30023137. The reversal of 30023133 is 33132003.
It is not a de Polignac number, because 30023133 - 214 = 30006749 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30023137) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 167638 + ... + 167816.
It is an arithmetic number, because the mean of its divisors is an integer number (1476000).
Almost surely, 230023133 is an apocalyptic number.
It is an amenable number.
30023133 is a deficient number, since it is larger than the sum of its proper divisors (17208867).
30023133 is a wasteful number, since it uses less digits than its factorization.
30023133 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 366 (or 352 counting only the distinct ones).
The product of its (nonzero) digits is 162, while the sum is 15.
The square root of 30023133 is about 5479.3369124375. The cubic root of 30023133 is about 310.8030963087.
Adding to 30023133 its reverse (33132003), we get a palindrome (63155136).
The spelling of 30023133 in words is "thirty million, twenty-three thousand, one hundred thirty-three".
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