Base | Representation |
---|---|
bin | 111001100010… |
… | …1010100011001 |
3 | 2002202201012010 |
4 | 1303011110121 |
5 | 30210341340 |
6 | 2554340133 |
7 | 514266234 |
oct | 163052431 |
9 | 62681163 |
10 | 30168345 |
11 | 16035a19 |
12 | a12a649 |
13 | 63337bc |
14 | 401441b |
15 | 29adb80 |
hex | 1cc5519 |
30168345 has 16 divisors (see below), whose sum is σ = 48932352. Its totient is φ = 15868800.
The previous prime is 30168337. The next prime is 30168349. The reversal of 30168345 is 54386103.
It is not a de Polignac number, because 30168345 - 23 = 30168337 is a prime.
It is not an unprimeable number, because it can be changed into a prime (30168349) 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, 12681 + ... + 14870.
It is an arithmetic number, because the mean of its divisors is an integer number (3058272).
Almost surely, 230168345 is an apocalyptic number.
It is an amenable number.
30168345 is a deficient number, since it is larger than the sum of its proper divisors (18764007).
30168345 is a wasteful number, since it uses less digits than its factorization.
30168345 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 27632.
The product of its (nonzero) digits is 8640, while the sum is 30.
The square root of 30168345 is about 5492.5718019886. The cubic root of 30168345 is about 311.3033746629.
The spelling of 30168345 in words is "thirty million, one hundred sixty-eight thousand, three hundred forty-five".
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