Search a number
-
+
220281080 = 2355507027
BaseRepresentation
bin11010010000100…
…11100011111000
3120100111102211112
431020103203320
5422342443310
633505215452
75313233615
oct1510234370
9510442745
10220281080
11103385488
1261931588
1336838646
142138150c
1514513705
hexd2138f8

220281080 has 16 divisors (see below), whose sum is σ = 495632520. Its totient is φ = 88112416.

The previous prime is 220281049. The next prime is 220281109. The reversal of 220281080 is 80182022.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 2753474 + ... + 2753553.

Almost surely, 2220281080 is an apocalyptic number.

220281080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220281080 is an abundant number, since it is smaller than the sum of its proper divisors (275351440).

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

220281080 is a wasteful number, since it uses less digits than its factorization.

220281080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5507038 (or 5507034 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 220281080 is about 14841.8691545236. The cubic root of 220281080 is about 603.9380592301.

The spelling of 220281080 in words is "two hundred twenty million, two hundred eighty-one thousand, eighty".

Divisors: 1 2 4 5 8 10 20 40 5507027 11014054 22028108 27535135 44056216 55070270 110140540 220281080