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385222 = 2192611
BaseRepresentation
bin1011110000011000110
3201120102111
41132003012
544311342
612131234
73163045
oct1360306
9646374
10385222
11243472
12166b1a
13106456
14a055c
1579217
hex5e0c6

385222 has 4 divisors (see below), whose sum is σ = 577836. Its totient is φ = 192610.

The previous prime is 385199. The next prime is 385223. The reversal of 385222 is 222583.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 222583 = 1032161.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 385193 and 385202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385223) by changing a digit.

385222 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 as a sum of consecutive naturals, namely, 96304 + ... + 96307.

It is an arithmetic number, because the mean of its divisors is an integer number (144459).

2385222 is an apocalyptic number.

385222 is a deficient number, since it is larger than the sum of its proper divisors (192614).

385222 is a wasteful number, since it uses less digits than its factorization.

385222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192613.

The product of its digits is 960, while the sum is 22.

The square root of 385222 is about 620.6625492166. The cubic root of 385222 is about 72.7618435074.

The spelling of 385222 in words is "three hundred eighty-five thousand, two hundred twenty-two".

Divisors: 1 2 192611 385222