Base | Representation |
---|---|
bin | 10100000011010… |
… | …00011101011110 |
3 | 102201111110001202 |
4 | 22001220131132 |
5 | 321024400110 |
6 | 24405035502 |
7 | 4111451045 |
oct | 1201503536 |
9 | 381443052 |
10 | 168200030 |
11 | 86a43199 |
12 | 483b5b92 |
13 | 28b01c5b |
14 | 184a555c |
15 | eb770a5 |
hex | a06875e |
168200030 has 32 divisors (see below), whose sum is σ = 310025664. Its totient is φ = 65684736.
The previous prime is 168200003. The next prime is 168200063. The reversal of 168200030 is 30002861.
It is a junction number, because it is equal to n+sod(n) for n = 168199975 and 168200011.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74072 + ... + 76308.
It is an arithmetic number, because the mean of its divisors is an integer number (9688302).
Almost surely, 2168200030 is an apocalyptic number.
168200030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
168200030 is a deficient number, since it is larger than the sum of its proper divisors (141825634).
168200030 is a wasteful number, since it uses less digits than its factorization.
168200030 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2420.
The product of its (nonzero) digits is 288, while the sum is 20.
The square root of 168200030 is about 12969.1954260856. The cubic root of 168200030 is about 552.0037434984.
Adding to 168200030 its reverse (30002861), we get a palindrome (198202891).
The spelling of 168200030 in words is "one hundred sixty-eight million, two hundred thousand, thirty".
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