Search a number
-
+
389249 = 7173271
BaseRepresentation
bin1011111000010000001
3201202221122
41133002001
544423444
612202025
73210560
oct1370201
9652848
10389249
112464a3
12169315
13108233
14a1bd7
157a4ee
hex5f081

389249 has 8 divisors (see below), whose sum is σ = 471168. Its totient is φ = 313920.

The previous prime is 389231. The next prime is 389269. The reversal of 389249 is 942983.

389249 = T134 + T135 + ... + T167.

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

It is a cyclic number.

It is not a de Polignac number, because 389249 - 212 = 385153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (389219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1517 + ... + 1754.

It is an arithmetic number, because the mean of its divisors is an integer number (58896).

2389249 is an apocalyptic number.

It is an amenable number.

389249 is a deficient number, since it is larger than the sum of its proper divisors (81919).

389249 is a wasteful number, since it uses less digits than its factorization.

389249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3295.

The product of its digits is 15552, while the sum is 35.

The square root of 389249 is about 623.8982288803. The cubic root of 389249 is about 73.0145089070.

The spelling of 389249 in words is "three hundred eighty-nine thousand, two hundred forty-nine".

Divisors: 1 7 17 119 3271 22897 55607 389249