Search a number
-
+
389258 = 21911019
BaseRepresentation
bin1011111000010001010
3201202221222
41133002022
544424013
612202042
73210602
oct1370212
9652858
10389258
11246501
12169322
1310823c
14a1c02
157a508
hex5f08a

389258 has 8 divisors (see below), whose sum is σ = 587520. Its totient is φ = 193420.

The previous prime is 389231. The next prime is 389269. The reversal of 389258 is 852983.

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

It is an alternating number because its digits alternate between odd and even.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 389258.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128 + ... + 891.

It is an arithmetic number, because the mean of its divisors is an integer number (73440).

2389258 is an apocalyptic number.

389258 is a deficient number, since it is larger than the sum of its proper divisors (198262).

389258 is a wasteful number, since it uses less digits than its factorization.

389258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212.

The product of its digits is 17280, while the sum is 35.

The square root of 389258 is about 623.9054415534. The cubic root of 389258 is about 73.0150716363.

The spelling of 389258 in words is "three hundred eighty-nine thousand, two hundred fifty-eight".

Divisors: 1 2 191 382 1019 2038 194629 389258