Search a number
-
+
208870080 = 2635217573
BaseRepresentation
bin11000111001100…
…01101011000000
3112120000200212220
430130301223000
5411432320310
632420451040
75114236446
oct1434615300
9476020786
10208870080
11a79a1201
1259b49a80
1334371783
141da50b96
151350c670
hexc731ac0

208870080 has 56 divisors (see below), whose sum is σ = 663165552. Its totient is φ = 55698432.

The previous prime is 208870019. The next prime is 208870091. The reversal of 208870080 is 80078802.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107827 + ... + 109746.

It is an arithmetic number, because the mean of its divisors is an integer number (11842242).

Almost surely, 2208870080 is an apocalyptic number.

208870080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

208870080 is an abundant number, since it is smaller than the sum of its proper divisors (454295472).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

208870080 is a wasteful number, since it uses less digits than its factorization.

208870080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217593 (or 217583 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 33.

The square root of 208870080 is about 14452.3382191257. The cubic root of 208870080 is about 593.3242209881.

The spelling of 208870080 in words is "two hundred eight million, eight hundred seventy thousand, eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 160 192 240 320 480 960 217573 435146 652719 870292 1087865 1305438 1740584 2175730 2610876 3263595 3481168 4351460 5221752 6527190 6962336 8702920 10443504 13054380 13924672 17405840 20887008 26108760 34811680 41774016 52217520 69623360 104435040 208870080