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389201 = 1312971
BaseRepresentation
bin1011111000001010001
3201202212212
41133001101
544423301
612201505
73210461
oct1370121
9652785
10389201
1124645a
12169295
131081c7
14a1ba1
157a4bb
hex5f051

389201 has 4 divisors (see below), whose sum is σ = 392304. Its totient is φ = 386100.

The previous prime is 389189. The next prime is 389219. The reversal of 389201 is 102983.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 389201 - 210 = 388177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (389231) 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, 1355 + ... + 1616.

It is an arithmetic number, because the mean of its divisors is an integer number (98076).

2389201 is an apocalyptic number.

It is an amenable number.

389201 is a deficient number, since it is larger than the sum of its proper divisors (3103).

389201 is a wasteful number, since it uses less digits than its factorization.

389201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3102.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 389201 is about 623.8597598820. The cubic root of 389201 is about 73.0115075372.

The spelling of 389201 in words is "three hundred eighty-nine thousand, two hundred one".

Divisors: 1 131 2971 389201