Base | Representation |
---|---|
bin | 10100000100101… |
… | …11100001111110 |
3 | 102201212020112111 |
4 | 22002113201332 |
5 | 321102032310 |
6 | 24413124234 |
7 | 4113213124 |
oct | 1202274176 |
9 | 381766474 |
10 | 168392830 |
11 | 87065031 |
12 | 4848967a |
13 | 28b6b938 |
14 | 18515914 |
15 | ebb428a |
hex | a09787e |
168392830 has 16 divisors (see below), whose sum is σ = 307377504. Its totient is φ = 66408160.
The previous prime is 168392813. The next prime is 168392857. The reversal of 168392830 is 38293861.
168392830 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a super-2 number, since 2×1683928302 = 56712290390817800, which contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117877 + ... + 119296.
It is an arithmetic number, because the mean of its divisors is an integer number (19211094).
Almost surely, 2168392830 is an apocalyptic number.
168392830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
168392830 is a deficient number, since it is larger than the sum of its proper divisors (138984674).
168392830 is a wasteful number, since it uses less digits than its factorization.
168392830 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 237251.
The product of its (nonzero) digits is 62208, while the sum is 40.
The square root of 168392830 is about 12976.6262949967. The cubic root of 168392830 is about 552.2145751765.
The spelling of 168392830 in words is "one hundred sixty-eight million, three hundred ninety-two thousand, eight hundred thirty".
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