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4440223431 = 32770479737
BaseRepresentation
bin1000010001010100…
…00110111011000111
3102110110001201110200
410020222012323013
533043144122211
62012333221543
7215014163550
oct41052067307
912413051420
104440223431
111979432646
12a3b0318b3
13559ba7457
143019c9327
151aec31b56
hex108a86ec7

4440223431 has 12 divisors (see below), whose sum is σ = 7329892752. Its totient is φ = 2537270496.

The previous prime is 4440223423. The next prime is 4440223471. The reversal of 4440223431 is 1343220444.

It is a happy number.

4440223431 is a `hidden beast` number, since 4 + 4 + 4 + 0 + 223 + 431 = 666.

It is not a de Polignac number, because 4440223431 - 23 = 4440223423 is a prime.

It is a super-2 number, since 2×44402234312 = 39431168234402823522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4440223395 and 4440223404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4440223471) 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, 35239806 + ... + 35239931.

It is an arithmetic number, because the mean of its divisors is an integer number (610824396).

Almost surely, 24440223431 is an apocalyptic number.

4440223431 is a deficient number, since it is larger than the sum of its proper divisors (2889669321).

4440223431 is a wasteful number, since it uses less digits than its factorization.

4440223431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70479750 (or 70479747 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

The square root of 4440223431 is about 66635.0015457342. The cubic root of 4440223431 is about 1643.6207223074.

Adding to 4440223431 its reverse (1343220444), we get a palindrome (5783443875).

The spelling of 4440223431 in words is "four billion, four hundred forty million, two hundred twenty-three thousand, four hundred thirty-one".

Divisors: 1 3 7 9 21 63 70479737 211439211 493358159 634317633 1480074477 4440223431