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208628000 = 255377451
BaseRepresentation
bin11000110111101…
…10100100100000
3112112120101210222
430123312210200
5411402044000
632411342212
75112210620
oct1433664440
9475511728
10208628000
11a7846339
1259a51968
13342b8529
141d9ca880
15134b0a85
hexc6f6920

208628000 has 96 divisors (see below), whose sum is σ = 585906048. Its totient is φ = 71520000.

The previous prime is 208627997. The next prime is 208628011. The reversal of 208628000 is 826802.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24275 + ... + 31725.

It is an arithmetic number, because the mean of its divisors is an integer number (6103188).

Almost surely, 2208628000 is an apocalyptic number.

208628000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 208628000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (292953024).

208628000 is an abundant number, since it is smaller than the sum of its proper divisors (377278048).

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

208628000 is an equidigital number, since it uses as much as digits as its factorization.

208628000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7483 (or 7465 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 208628000 is about 14443.9606756596. The cubic root of 208628000 is about 593.0949118519.

The spelling of 208628000 in words is "two hundred eight million, six hundred twenty-eight thousand".

Divisors: 1 2 4 5 7 8 10 14 16 20 25 28 32 35 40 50 56 70 80 100 112 125 140 160 175 200 224 250 280 350 400 500 560 700 800 875 1000 1120 1400 1750 2000 2800 3500 4000 5600 7000 7451 14000 14902 28000 29804 37255 52157 59608 74510 104314 119216 149020 186275 208628 238432 260785 298040 372550 417256 521570 596080 745100 834512 931375 1043140 1192160 1303925 1490200 1669024 1862750 2086280 2607850 2980400 3725500 4172560 5215700 5960800 6519625 7451000 8345120 10431400 13039250 14902000 20862800 26078500 29804000 41725600 52157000 104314000 208628000