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4444444397 = 6766334991
BaseRepresentation
bin1000010001110100…
…01101011011101101
3102110202000011112202
410020322031123231
533100234210042
62013003511245
7215065103561
oct41072153355
912422004482
104444444397
111980855948
12a40528525
1355aa24773
143023a76a1
151b02b7632
hex108e8d6ed

4444444397 has 4 divisors (see below), whose sum is σ = 4510779456. Its totient is φ = 4378109340.

The previous prime is 4444444393. The next prime is 4444444429. The reversal of 4444444397 is 7934444444.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4444444397 - 22 = 4444444393 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4444444393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33167429 + ... + 33167562.

It is an arithmetic number, because the mean of its divisors is an integer number (1127694864).

Almost surely, 24444444397 is an apocalyptic number.

It is an amenable number.

4444444397 is a deficient number, since it is larger than the sum of its proper divisors (66335059).

4444444397 is an equidigital number, since it uses as much as digits as its factorization.

4444444397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66335058.

The product of its digits is 3096576, while the sum is 47.

The square root of 4444444397 is about 66666.6663108333. Note that the first 3 decimals coincide. The cubic root of 4444444397 is about 1644.1413770366.

Adding to 4444444397 its sum of digits (47), we get a palindrome (4444444444).

The spelling of 4444444397 in words is "four billion, four hundred forty-four million, four hundred forty-four thousand, three hundred ninety-seven".

Divisors: 1 67 66334991 4444444397