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44020478247 = 387791671431
BaseRepresentation
bin101000111111110100…
…110011000100100111
311012121212021222211020
4220333310303010213
51210123220300442
632120035342223
73115603614504
oct507764630447
9135555258736
1044020478247
111773a459939
128646451973
1341c6cc3c85
1421b85324ab
1512299549ec
hexa3fd33127

44020478247 has 8 divisors (see below), whose sum is σ = 58700691840. Its totient is φ = 29343625080.

The previous prime is 44020478153. The next prime is 44020478269. The reversal of 44020478247 is 74287402044.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 44020478247 - 27 = 44020478119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 44020478199 and 44020478208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44020471247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 809379 + ... + 862052.

It is an arithmetic number, because the mean of its divisors is an integer number (7337586480).

Almost surely, 244020478247 is an apocalyptic number.

44020478247 is a deficient number, since it is larger than the sum of its proper divisors (14680213593).

44020478247 is a wasteful number, since it uses less digits than its factorization.

44020478247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1680213.

The product of its (nonzero) digits is 401408, while the sum is 42.

The spelling of 44020478247 in words is "forty-four billion, twenty million, four hundred seventy-eight thousand, two hundred forty-seven".

Divisors: 1 3 8779 26337 1671431 5014293 14673492749 44020478247