Base | Representation |
---|---|
bin | 111001011010… |
… | …0101010110000 |
3 | 2002122020122011 |
4 | 1302310222300 |
5 | 30201201034 |
6 | 2553052304 |
7 | 513563344 |
oct | 162645260 |
9 | 62566564 |
10 | 30100144 |
11 | 15a99758 |
12 | a0b7094 |
13 | 630b749 |
14 | 3dd7624 |
15 | 2998864 |
hex | 1cb4ab0 |
30100144 has 20 divisors (see below), whose sum is σ = 60330960. Its totient is φ = 14530880.
The previous prime is 30100141. The next prime is 30100151. The reversal of 30100144 is 44100103.
It is not an unprimeable number, because it can be changed into a prime (30100141) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31972 + ... + 32899.
It is an arithmetic number, because the mean of its divisors is an integer number (3016548).
Almost surely, 230100144 is an apocalyptic number.
It is an amenable number.
30100144 is an abundant number, since it is smaller than the sum of its proper divisors (30230816).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30100144 is a wasteful number, since it uses less digits than its factorization.
30100144 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 64908 (or 64902 counting only the distinct ones).
The product of its (nonzero) digits is 48, while the sum is 13.
The square root of 30100144 is about 5486.3598132095. The cubic root of 30100144 is about 311.0686118061.
Adding to 30100144 its reverse (44100103), we get a palindrome (74200247).
The spelling of 30100144 in words is "thirty million, one hundred thousand, one hundred forty-four".
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