Search a number
-
+
220084481 = 673284843
BaseRepresentation
bin11010001111000…
…11100100000001
3120100010110011002
431013203210001
5422320200411
633501101345
75311454501
oct1507434401
9510113132
10220084481
11103260801
1261857855
133679a006
142132da01
15144c533b
hexd1e3901

220084481 has 4 divisors (see below), whose sum is σ = 223369392. Its totient is φ = 216799572.

The previous prime is 220084471. The next prime is 220084483. The reversal of 220084481 is 184480022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 220084481 - 214 = 220068097 is a prime.

It is a super-2 number, since 2×2200844812 = 96874357554078722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220084483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1642355 + ... + 1642488.

It is an arithmetic number, because the mean of its divisors is an integer number (55842348).

Almost surely, 2220084481 is an apocalyptic number.

It is an amenable number.

220084481 is a deficient number, since it is larger than the sum of its proper divisors (3284911).

220084481 is an equidigital number, since it uses as much as digits as its factorization.

220084481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3284910.

The product of its (nonzero) digits is 4096, while the sum is 29.

The square root of 220084481 is about 14835.2445547756. The cubic root of 220084481 is about 603.7583358830.

The spelling of 220084481 in words is "two hundred twenty million, eighty-four thousand, four hundred eighty-one".

Divisors: 1 67 3284843 220084481