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208055892 = 223112576133
BaseRepresentation
bin11000110011010…
…10111001010100
3112111111100000210
430121222321110
5411230242032
632351205420
75104305642
oct1431527124
9474440023
10208055892
11a7495520
1259816870
1334147cc5
141d8bc192
15133eb2cc
hexc66ae54

208055892 has 48 divisors (see below), whose sum is σ = 531744192. Its totient is φ = 62791680.

The previous prime is 208055891. The next prime is 208055951. The reversal of 208055892 is 298550802.

208055892 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 208055892.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208055891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30858 + ... + 36990.

It is an arithmetic number, because the mean of its divisors is an integer number (11078004).

Almost surely, 2208055892 is an apocalyptic number.

208055892 is a gapful number since it is divisible by the number (22) 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 208055892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (265872096).

208055892 is an abundant number, since it is smaller than the sum of its proper divisors (323688300).

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

208055892 is a wasteful number, since it uses less digits than its factorization.

208055892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6408 (or 6406 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 39.

The square root of 208055892 is about 14424.1426781629. The cubic root of 208055892 is about 592.5522793871.

The spelling of 208055892 in words is "two hundred eight million, fifty-five thousand, eight hundred ninety-two".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 257 514 771 1028 1542 2827 3084 5654 6133 8481 11308 12266 16962 18399 24532 33924 36798 67463 73596 134926 202389 269852 404778 809556 1576181 3152362 4728543 6304724 9457086 17337991 18914172 34675982 52013973 69351964 104027946 208055892