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220242430 = 2569131873
BaseRepresentation
bin11010010000010…
…10000111111110
3120100102110211001
431020022013332
5422340224210
633504320514
75313013132
oct1510120776
9510373731
10220242430
11103359441
126191313a
1336823b85
14213713c2
151450703a
hexd20a1fe

220242430 has 16 divisors (see below), whose sum is σ = 397022544. Its totient is φ = 87966720.

The previous prime is 220242403. The next prime is 220242479. The reversal of 220242430 is 34242022.

220242430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 220242398 and 220242407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9027 + ... + 22846.

It is an arithmetic number, because the mean of its divisors is an integer number (24813909).

Almost surely, 2220242430 is an apocalyptic number.

220242430 is a deficient number, since it is larger than the sum of its proper divisors (176780114).

220242430 is a wasteful number, since it uses less digits than its factorization.

220242430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32571.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 220242430 is about 14840.5670376842. The cubic root of 220242430 is about 603.9027353137.

Adding to 220242430 its reverse (34242022), we get a palindrome (254484452).

The spelling of 220242430 in words is "two hundred twenty million, two hundred forty-two thousand, four hundred thirty".

Divisors: 1 2 5 10 691 1382 3455 6910 31873 63746 159365 318730 22024243 44048486 110121215 220242430