Search a number
-
+
208275020 = 22510995539
BaseRepresentation
bin11000110101000…
…00011001001100
3112111220110121122
430122200121030
5411304300040
632400020112
75106210542
oct1432403114
9474813548
10208275020
11a7625118
1259901638
13341c3975
141d937d92
15134411b5
hexc6a064c

208275020 has 24 divisors (see below), whose sum is σ = 441394800. Its totient is φ = 82544832.

The previous prime is 208274999. The next prime is 208275037. The reversal of 208275020 is 20572802.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45590 + ... + 49949.

It is an arithmetic number, because the mean of its divisors is an integer number (18391450).

Almost surely, 2208275020 is an apocalyptic number.

208275020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

208275020 is an abundant number, since it is smaller than the sum of its proper divisors (233119780).

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

208275020 is a wasteful number, since it uses less digits than its factorization.

208275020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95657 (or 95655 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 208275020 is about 14431.7365552452. The cubic root of 208275020 is about 592.7602351057.

The spelling of 208275020 in words is "two hundred eight million, two hundred seventy-five thousand, twenty".

Divisors: 1 2 4 5 10 20 109 218 436 545 1090 2180 95539 191078 382156 477695 955390 1910780 10413751 20827502 41655004 52068755 104137510 208275020