Base | Representation |
---|---|
bin | 111001011111… |
… | …1011101011001 |
3 | 2002201111021020 |
4 | 1302333131121 |
5 | 30204104340 |
6 | 2554033053 |
7 | 514136250 |
oct | 162773531 |
9 | 62644236 |
10 | 30144345 |
11 | 16019990 |
12 | a118789 |
13 | 63258ba |
14 | 4009797 |
15 | 29a69d0 |
hex | 1cbf759 |
30144345 has 32 divisors (see below), whose sum is σ = 60134400. Its totient is φ = 12527040.
The previous prime is 30144341. The next prime is 30144371. The reversal of 30144345 is 54344103.
It is not a de Polignac number, because 30144345 - 22 = 30144341 is a prime.
It is not an unprimeable number, because it can be changed into a prime (30144341) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11895 + ... + 14204.
It is an arithmetic number, because the mean of its divisors is an integer number (1879200).
Almost surely, 230144345 is an apocalyptic number.
30144345 is a gapful number since it is divisible by the number (35) formed by its first and last digit.
It is an amenable number.
30144345 is a deficient number, since it is larger than the sum of its proper divisors (29990055).
30144345 is a wasteful number, since it uses less digits than its factorization.
30144345 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 26125.
The product of its (nonzero) digits is 2880, while the sum is 24.
The square root of 30144345 is about 5490.3865984100. The cubic root of 30144345 is about 311.2208017642.
Adding to 30144345 its reverse (54344103), we get a palindrome (84488448).
The spelling of 30144345 in words is "thirty million, one hundred forty-four thousand, three hundred forty-five".
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