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389112203 = 439049121
BaseRepresentation
bin10111001100010…
…110000110001011
31000010011221121002
4113030112012023
51244103042303
6102340005215
712433253624
oct2714260613
91003157532
10389112203
1118a709837
12aa39080b
13627cb90c
143996ca4b
1524262788
hex1731618b

389112203 has 4 divisors (see below), whose sum is σ = 398161368. Its totient is φ = 380063040.

The previous prime is 389112173. The next prime is 389112247. The reversal of 389112203 is 302211983.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 389112203 - 212 = 389108107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (389112103) 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, 4524518 + ... + 4524603.

It is an arithmetic number, because the mean of its divisors is an integer number (99540342).

Almost surely, 2389112203 is an apocalyptic number.

389112203 is a deficient number, since it is larger than the sum of its proper divisors (9049165).

389112203 is an equidigital number, since it uses as much as digits as its factorization.

389112203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9049164.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 389112203 is about 19725.9271771950. The cubic root of 389112203 is about 730.0595454024.

It can be divided in two parts, 38911 and 2203, that added together give a palindrome (41114).

The spelling of 389112203 in words is "three hundred eighty-nine million, one hundred twelve thousand, two hundred three".

Divisors: 1 43 9049121 389112203