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208339243 = 787733937
BaseRepresentation
bin11000110101100…
…00000100101011
3112112000201201021
430122300010223
5411313323433
632401233311
75106566020
oct1432600453
9475021637
10208339243
11a76693a2
1259932837
1334216c78
141d953547
151345522d
hexc6b012b

208339243 has 8 divisors (see below), whose sum is σ = 238380512. Its totient is φ = 178367616.

The previous prime is 208339231. The next prime is 208339253. The reversal of 208339243 is 342933802.

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

It is not a de Polignac number, because 208339243 - 213 = 208331051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 208339199 and 208339208.

It is not an unprimeable number, because it can be changed into a prime (208339253) 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, 10830 + ... + 23107.

It is an arithmetic number, because the mean of its divisors is an integer number (29797564).

Almost surely, 2208339243 is an apocalyptic number.

208339243 is a deficient number, since it is larger than the sum of its proper divisors (30041269).

208339243 is an equidigital number, since it uses as much as digits as its factorization.

208339243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34821.

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 208339243 is about 14433.9614451473. The cubic root of 208339243 is about 592.8211560430.

The spelling of 208339243 in words is "two hundred eight million, three hundred thirty-nine thousand, two hundred forty-three".

Divisors: 1 7 877 6139 33937 237559 29762749 208339243