Base | Representation |
---|---|
bin | 1011111101111111110 |
3 | 201220222120 |
4 | 1133233332 |
5 | 100022230 |
6 | 12223410 |
7 | 3222261 |
oct | 1375776 |
9 | 656876 |
10 | 392190 |
11 | 248727 |
12 | 16ab66 |
13 | 109686 |
14 | a2cd8 |
15 | 7b310 |
hex | 5fbfe |
392190 has 32 divisors (see below), whose sum is σ = 997920. Its totient is φ = 98304.
The previous prime is 392177. The next prime is 392201. The reversal of 392190 is 91293.
It is a happy number.
It is a super-2 number, since 2×3921902 = 307625992200, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 392190.
It is a congruent number.
It is an unprimeable number.
392190 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126 + ... + 894.
It is an arithmetic number, because the mean of its divisors is an integer number (31185).
2392190 is an apocalyptic number.
392190 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 392190, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (498960).
392190 is an abundant number, since it is smaller than the sum of its proper divisors (605730).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
392190 is a wasteful number, since it uses less digits than its factorization.
392190 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 796.
The product of its (nonzero) digits is 486, while the sum is 24.
The square root of 392190 is about 626.2507485025. The cubic root of 392190 is about 73.1979365777.
The spelling of 392190 in words is "three hundred ninety-two thousand, one hundred ninety".
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