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4430221345 = 511978231009
BaseRepresentation
bin1000010000000111…
…11101000000100001
3102102202020120012001
410020003331000201
533033114040340
62011335004001
7214533155134
oct41003750041
912382216161
104430221345
111973820960
12a37809601
13557ab4964
1430054421b
151ade0829a
hex1080fd021

4430221345 has 32 divisors (see below), whose sum is σ = 5872285440. Its totient is φ = 3181731840.

The previous prime is 4430221309. The next prime is 4430221357. The reversal of 4430221345 is 5431220344.

It is a happy number.

It is not a de Polignac number, because 4430221345 - 27 = 4430221217 is a prime.

It is a super-2 number, since 2×44302213452 = 39253722331387218050, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4390201 + ... + 4391209.

It is an arithmetic number, because the mean of its divisors is an integer number (183508920).

Almost surely, 24430221345 is an apocalyptic number.

It is an amenable number.

4430221345 is a deficient number, since it is larger than the sum of its proper divisors (1442064095).

4430221345 is a wasteful number, since it uses less digits than its factorization.

4430221345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1945.

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 4430221345 is about 66559.9079401407. The cubic root of 4430221345 is about 1642.3856496761.

Adding to 4430221345 its reverse (5431220344), we get a palindrome (9861441689).

The spelling of 4430221345 in words is "four billion, four hundred thirty million, two hundred twenty-one thousand, three hundred forty-five".

Divisors: 1 5 11 55 97 485 823 1009 1067 4115 5045 5335 9053 11099 45265 55495 79831 97873 399155 489365 830407 878141 1076603 4152035 4390705 5383015 9134477 45672385 80549479 402747395 886044269 4430221345