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4143444331 = 13318726487
BaseRepresentation
bin1111011011110111…
…1111000101101011
3101200202121210002011
43312331333011223
531441210204311
61523052220351
7204451460425
oct36675770553
911622553064
104143444331
111836959064
1297776a6b7
13510566710
142b4413815
15193b5c321
hexf6f7f16b

4143444331 has 4 divisors (see below), whose sum is σ = 4462170832. Its totient is φ = 3824717832.

The previous prime is 4143444329. The next prime is 4143444343. The reversal of 4143444331 is 1334443414.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 4143444331 - 21 = 4143444329 is a prime.

It is a super-2 number, since 2×41434443312 = 34336261848192075122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4143444293 and 4143444302.

It is not an unprimeable number, because it can be changed into a prime (4143444311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159363231 + ... + 159363256.

It is an arithmetic number, because the mean of its divisors is an integer number (1115542708).

Almost surely, 24143444331 is an apocalyptic number.

4143444331 is a deficient number, since it is larger than the sum of its proper divisors (318726501).

4143444331 is a wasteful number, since it uses less digits than its factorization.

4143444331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318726500.

The product of its digits is 27648, while the sum is 31.

The square root of 4143444331 is about 64369.5916640769. The cubic root of 4143444331 is about 1606.1539475011.

Adding to 4143444331 its reverse (1334443414), we get a palindrome (5477887745).

The spelling of 4143444331 in words is "four billion, one hundred forty-three million, four hundred forty-four thousand, three hundred thirty-one".

Divisors: 1 13 318726487 4143444331