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220430043 = 3278731121
BaseRepresentation
bin11010010001101…
…11111011011011
3120100210000011200
431020313323123
5422412230133
633512325243
75314424121
oct1510677333
9510700150
10220430043
11103477399
12619a3823
133688b3a2
14213bd911
1514542913
hexd237edb

220430043 has 12 divisors (see below), whose sum is σ = 318813768. Its totient is φ = 146761920.

The previous prime is 220430033. The next prime is 220430051. The reversal of 220430043 is 340034022.

It is not a de Polignac number, because 220430043 - 25 = 220430011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220429998 and 220430025.

It is not an unprimeable number, because it can be changed into a prime (220430003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8478 + ... + 22643.

It is an arithmetic number, because the mean of its divisors is an integer number (26567814).

Almost surely, 2220430043 is an apocalyptic number.

220430043 is a deficient number, since it is larger than the sum of its proper divisors (98383725).

220430043 is a wasteful number, since it uses less digits than its factorization.

220430043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31914 (or 31911 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 220430043 is about 14846.8866433337. The cubic root of 220430043 is about 604.0741643577.

Adding to 220430043 its reverse (340034022), we get a palindrome (560464065).

The spelling of 220430043 in words is "two hundred twenty million, four hundred thirty thousand, forty-three".

Divisors: 1 3 9 787 2361 7083 31121 93363 280089 24492227 73476681 220430043