Base | Representation |
---|---|
bin | 111001111100… |
… | …0100010110000 |
3 | 2010011101000001 |
4 | 1303320202300 |
5 | 30234100120 |
6 | 3003035344 |
7 | 516132031 |
oct | 163704260 |
9 | 63141001 |
10 | 30378160 |
11 | 1616961a |
12 | a20bb54 |
13 | 63a8157 |
14 | 406aa88 |
15 | 2a00e0a |
hex | 1cf88b0 |
30378160 has 20 divisors (see below), whose sum is σ = 70629408. Its totient is φ = 12151232.
The previous prime is 30378157. The next prime is 30378163. The reversal of 30378160 is 6187303.
It is an interprime number because it is at equal distance from previous prime (30378157) and next prime (30378163).
It is a tau number, because it is divible by the number of its divisors (20).
It is not an unprimeable number, because it can be changed into a prime (30378163) 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, 189784 + ... + 189943.
Almost surely, 230378160 is an apocalyptic number.
It is an amenable number.
30378160 is an abundant number, since it is smaller than the sum of its proper divisors (40251248).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30378160 is a wasteful number, since it uses less digits than its factorization.
30378160 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 379740 (or 379734 counting only the distinct ones).
The product of its (nonzero) digits is 3024, while the sum is 28.
The square root of 30378160 is about 5511.6385948282. The cubic root of 30378160 is about 312.0233929425.
The spelling of 30378160 in words is "thirty million, three hundred seventy-eight thousand, one hundred sixty".
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