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389222 = 2712741
BaseRepresentation
bin1011111000001100110
3201202220122
41133001212
544423342
612201542
73210521
oct1370146
9652818
10389222
11246479
121692b2
13108212
14a1bb8
157a4d2
hex5f066

389222 has 8 divisors (see below), whose sum is σ = 592272. Its totient is φ = 191800.

The previous prime is 389219. The next prime is 389227. The reversal of 389222 is 222983.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 389191 and 389200.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 389222.

It is not an unprimeable number, because it can be changed into a prime (389227) 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, 1229 + ... + 1512.

It is an arithmetic number, because the mean of its divisors is an integer number (74034).

2389222 is an apocalyptic number.

389222 is a deficient number, since it is larger than the sum of its proper divisors (203050).

389222 is a wasteful number, since it uses less digits than its factorization.

389222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2814.

The product of its digits is 1728, while the sum is 26.

The square root of 389222 is about 623.8765903606. The cubic root of 389222 is about 73.0128206669.

The spelling of 389222 in words is "three hundred eighty-nine thousand, two hundred twenty-two".

Divisors: 1 2 71 142 2741 5482 194611 389222